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Finding the Fourth Proportional to 359,503.29, 539,449.29 and 135,017.46

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Solution

The fourth proportional to 359,503.29, 539,449.29 and 135,017.46 is: 202,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,503.29 : 539,449.29 = 135,017.46 : x
  2. Step 2: Convert to fraction form
    359,503.29/539,449.29 = 135,017.46/x
  3. Step 3: Cross multiply
    359,503.29x = 539,449.29 × 135,017.46
  4. Step 4: Simplify right side
    359,503.29x = 72,835,072,934.60
  5. Step 5: Solve for x
    x = 72,835,072,934.60/359,503.29
  6. Step 6: Final answer
    x = 202,599.18

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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.