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Finding the Fourth Proportional to 359,272.64, 539,064.48 and 192,866.24

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Solution

The fourth proportional to 359,272.64, 539,064.48 and 192,866.24 is: 289,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,272.64 : 539,064.48 = 192,866.24 : x
  2. Step 2: Convert to fraction form
    359,272.64/539,064.48 = 192,866.24/x
  3. Step 3: Cross multiply
    359,272.64x = 539,064.48 × 192,866.24
  4. Step 4: Simplify right side
    359,272.64x = 103,967,339,375.16
  5. Step 5: Solve for x
    x = 103,967,339,375.16/359,272.64
  6. Step 6: Final answer
    x = 289,382.85

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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.