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Finding the Fourth Proportional to 359,694.47, 539,490.54 and 146,555.39

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Solution

The fourth proportional to 359,694.47, 539,490.54 and 146,555.39 is: 219,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,694.47 : 539,490.54 = 146,555.39 : x
  2. Step 2: Convert to fraction form
    359,694.47/539,490.54 = 146,555.39/x
  3. Step 3: Cross multiply
    359,694.47x = 539,490.54 × 146,555.39
  4. Step 4: Simplify right side
    359,694.47x = 79,065,246,491.01
  5. Step 5: Solve for x
    x = 79,065,246,491.01/359,694.47
  6. Step 6: Final answer
    x = 219,812.24

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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.