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Finding the Fourth Proportional to 499,909.65, 750,039.44 and 144,944.97

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Solution

The fourth proportional to 499,909.65, 750,039.44 and 144,944.97 is: 217,468.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,909.65 : 750,039.44 = 144,944.97 : x
  2. Step 2: Convert to fraction form
    499,909.65/750,039.44 = 144,944.97/x
  3. Step 3: Cross multiply
    499,909.65x = 750,039.44 × 144,944.97
  4. Step 4: Simplify right side
    499,909.65x = 108,714,443,404.89
  5. Step 5: Solve for x
    x = 108,714,443,404.89/499,909.65
  6. Step 6: Final answer
    x = 217,468.18

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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.