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Finding the Fourth Proportional to 71,604,038.40, 107,406,057.60 and 44,394,259.20

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Solution

The fourth proportional to 71,604,038.40, 107,406,057.60 and 44,394,259.20 is: 66,591,388.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,604,038.40 : 107,406,057.60 = 44,394,259.20 : x
  2. Step 2: Convert to fraction form
    71,604,038.40/107,406,057.60 = 44,394,259.20/x
  3. Step 3: Cross multiply
    71,604,038.40x = 107,406,057.60 × 44,394,259.20
  4. Step 4: Simplify right side
    71,604,038.40x = 4,768,212,360,744,530
  5. Step 5: Solve for x
    x = 4,768,212,360,744,530/71,604,038.40
  6. Step 6: Final answer
    x = 66,591,388.80

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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.