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Finding the Fourth Proportional to 43,604,819.60, 65,407,229.40 and 40,320,237.20

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Solution

The fourth proportional to 43,604,819.60, 65,407,229.40 and 40,320,237.20 is: 60,480,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,604,819.60 : 65,407,229.40 = 40,320,237.20 : x
  2. Step 2: Convert to fraction form
    43,604,819.60/65,407,229.40 = 40,320,237.20/x
  3. Step 3: Cross multiply
    43,604,819.60x = 65,407,229.40 × 40,320,237.20
  4. Step 4: Simplify right side
    43,604,819.60x = 2,637,235,004,002,814
  5. Step 5: Solve for x
    x = 2,637,235,004,002,814/43,604,819.60
  6. Step 6: Final answer
    x = 60,480,355.80

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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.