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Finding the Fourth Proportional to 67,160,744.80, 100,766,000.40 and 64,672,424.80

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Solution

The fourth proportional to 67,160,744.80, 100,766,000.40 and 64,672,424.80 is: 97,032,598.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,160,744.80 : 100,766,000.40 = 64,672,424.80 : x
  2. Step 2: Convert to fraction form
    67,160,744.80/100,766,000.40 = 64,672,424.80/x
  3. Step 3: Cross multiply
    67,160,744.80x = 100,766,000.40 × 64,672,424.80
  4. Step 4: Simplify right side
    67,160,744.80x = 6,516,781,583,265,770
  5. Step 5: Solve for x
    x = 6,516,781,583,265,770/67,160,744.80
  6. Step 6: Final answer
    x = 97,032,598.47

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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.