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Finding the Fourth Proportional to 70,689,552.80, 106,034,329.20 and 59,342,813.60

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Solution

The fourth proportional to 70,689,552.80, 106,034,329.20 and 59,342,813.60 is: 89,014,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,689,552.80 : 106,034,329.20 = 59,342,813.60 : x
  2. Step 2: Convert to fraction form
    70,689,552.80/106,034,329.20 = 59,342,813.60/x
  3. Step 3: Cross multiply
    70,689,552.80x = 106,034,329.20 × 59,342,813.60
  4. Step 4: Simplify right side
    70,689,552.80x = 6,292,375,432,916,637
  5. Step 5: Solve for x
    x = 6,292,375,432,916,637/70,689,552.80
  6. Step 6: Final answer
    x = 89,014,220.40

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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.