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Finding the Fourth Proportional to 359,751.16, 539,342.06 and 135,086.57

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Solution

The fourth proportional to 359,751.16, 539,342.06 and 135,086.57 is: 202,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,751.16 : 539,342.06 = 135,086.57 : x
  2. Step 2: Convert to fraction form
    359,751.16/539,342.06 = 135,086.57/x
  3. Step 3: Cross multiply
    359,751.16x = 539,342.06 × 135,086.57
  4. Step 4: Simplify right side
    359,751.16x = 72,857,867,592.52
  5. Step 5: Solve for x
    x = 72,857,867,592.52/359,751.16
  6. Step 6: Final answer
    x = 202,522.95

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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.