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Finding the Fourth Proportional to 67,157,169.60, 100,735,754.40 and 61,782,398.40

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Solution

The fourth proportional to 67,157,169.60, 100,735,754.40 and 61,782,398.40 is: 92,673,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,157,169.60 : 100,735,754.40 = 61,782,398.40 : x
  2. Step 2: Convert to fraction form
    67,157,169.60/100,735,754.40 = 61,782,398.40/x
  3. Step 3: Cross multiply
    67,157,169.60x = 100,735,754.40 × 61,782,398.40
  4. Step 4: Simplify right side
    67,157,169.60x = 6,223,696,511,465,353
  5. Step 5: Solve for x
    x = 6,223,696,511,465,353/67,157,169.60
  6. Step 6: Final answer
    x = 92,673,597.60

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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.