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Finding the Fourth Proportional to 459,044.80, 688,567.20 and 159,425.80

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Solution

The fourth proportional to 459,044.80, 688,567.20 and 159,425.80 is: 239,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,044.80 : 688,567.20 = 159,425.80 : x
  2. Step 2: Convert to fraction form
    459,044.80/688,567.20 = 159,425.80/x
  3. Step 3: Cross multiply
    459,044.80x = 688,567.20 × 159,425.80
  4. Step 4: Simplify right side
    459,044.80x = 109,775,376,713.76
  5. Step 5: Solve for x
    x = 109,775,376,713.76/459,044.80
  6. Step 6: Final answer
    x = 239,138.70

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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.