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Finding the Fourth Proportional to 74,892,138.60, 112,170,246.30 and 74,892,138.60

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Solution

The fourth proportional to 74,892,138.60, 112,170,246.30 and 74,892,138.60 is: 112,170,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,892,138.60 : 112,170,246.30 = 74,892,138.60 : x
  2. Step 2: Convert to fraction form
    74,892,138.60/112,170,246.30 = 74,892,138.60/x
  3. Step 3: Cross multiply
    74,892,138.60x = 112,170,246.30 × 74,892,138.60
  4. Step 4: Simplify right side
    74,892,138.60x = 8,400,669,632,695,736
  5. Step 5: Solve for x
    x = 8,400,669,632,695,736/74,892,138.60
  6. Step 6: Final answer
    x = 112,170,246.30

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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.