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Finding the Fourth Proportional to 78,245,851,590.60, 117,368,777,385.90 and 78,245,851,590.60

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Solution

The fourth proportional to 78,245,851,590.60, 117,368,777,385.90 and 78,245,851,590.60 is: 117,368,777,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,245,851,590.60 : 117,368,777,385.90 = 78,245,851,590.60 : x
  2. Step 2: Convert to fraction form
    78,245,851,590.60/117,368,777,385.90 = 78,245,851,590.60/x
  3. Step 3: Cross multiply
    78,245,851,590.60x = 117,368,777,385.90 × 78,245,851,590.60
  4. Step 4: Simplify right side
    78,245,851,590.60x = 9,183,619,936,707,300,818,944
  5. Step 5: Solve for x
    x = 9,183,619,936,707,300,818,944/78,245,851,590.60
  6. Step 6: Final answer
    x = 117,368,777,385.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.