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Finding the Fourth Proportional to 78,894,008.45, 118,341,012.68 and 78,894,008.45

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Solution

The fourth proportional to 78,894,008.45, 118,341,012.68 and 78,894,008.45 is: 118,341,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,008.45 : 118,341,012.68 = 78,894,008.45 : x
  2. Step 2: Convert to fraction form
    78,894,008.45/118,341,012.68 = 78,894,008.45/x
  3. Step 3: Cross multiply
    78,894,008.45x = 118,341,012.68 × 78,894,008.45
  4. Step 4: Simplify right side
    78,894,008.45x = 9,336,396,853,963,008
  5. Step 5: Solve for x
    x = 9,336,396,853,963,008/78,894,008.45
  6. Step 6: Final answer
    x = 118,341,012.68

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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.