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Finding the Fourth Proportional to 359,658.69, 539,499.62 and 188,837.13

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Solution

The fourth proportional to 359,658.69, 539,499.62 and 188,837.13 is: 283,261.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,658.69 : 539,499.62 = 188,837.13 : x
  2. Step 2: Convert to fraction form
    359,658.69/539,499.62 = 188,837.13/x
  3. Step 3: Cross multiply
    359,658.69x = 539,499.62 × 188,837.13
  4. Step 4: Simplify right side
    359,658.69x = 101,877,558,932.71
  5. Step 5: Solve for x
    x = 101,877,558,932.71/359,658.69
  6. Step 6: Final answer
    x = 283,261.78

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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.