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Finding the Fourth Proportional to 359,721.08, 539,454.94 and 119,769.82

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Solution

The fourth proportional to 359,721.08, 539,454.94 and 119,769.82 is: 179,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,721.08 : 539,454.94 = 119,769.82 : x
  2. Step 2: Convert to fraction form
    359,721.08/539,454.94 = 119,769.82/x
  3. Step 3: Cross multiply
    359,721.08x = 539,454.94 × 119,769.82
  4. Step 4: Simplify right side
    359,721.08x = 64,610,421,061.91
  5. Step 5: Solve for x
    x = 64,610,421,061.91/359,721.08
  6. Step 6: Final answer
    x = 179,612.55

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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.