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Finding the Fourth Proportional to 48,819.60, 73,229.40 and 42,404.40

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Solution

The fourth proportional to 48,819.60, 73,229.40 and 42,404.40 is: 63,606.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,819.60 : 73,229.40 = 42,404.40 : x
  2. Step 2: Convert to fraction form
    48,819.60/73,229.40 = 42,404.40/x
  3. Step 3: Cross multiply
    48,819.60x = 73,229.40 × 42,404.40
  4. Step 4: Simplify right side
    48,819.60x = 3,105,248,769.36
  5. Step 5: Solve for x
    x = 3,105,248,769.36/48,819.60
  6. Step 6: Final answer
    x = 63,606.60

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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.