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Finding the Fourth Proportional to 39,869,728.40, 59,804,592.60 and 39,491,814.80

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Solution

The fourth proportional to 39,869,728.40, 59,804,592.60 and 39,491,814.80 is: 59,237,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,869,728.40 : 59,804,592.60 = 39,491,814.80 : x
  2. Step 2: Convert to fraction form
    39,869,728.40/59,804,592.60 = 39,491,814.80/x
  3. Step 3: Cross multiply
    39,869,728.40x = 59,804,592.60 × 39,491,814.80
  4. Step 4: Simplify right side
    39,869,728.40x = 2,361,791,895,148,650.50
  5. Step 5: Solve for x
    x = 2,361,791,895,148,650.50/39,869,728.40
  6. Step 6: Final answer
    x = 59,237,722.20

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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.