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Finding the Fourth Proportional to 359,654.64, 539,583.12 and 157,268.55

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Solution

The fourth proportional to 359,654.64, 539,583.12 and 157,268.55 is: 235,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,654.64 : 539,583.12 = 157,268.55 : x
  2. Step 2: Convert to fraction form
    359,654.64/539,583.12 = 157,268.55/x
  3. Step 3: Cross multiply
    359,654.64x = 539,583.12 × 157,268.55
  4. Step 4: Simplify right side
    359,654.64x = 84,859,454,100.53
  5. Step 5: Solve for x
    x = 84,859,454,100.53/359,654.64
  6. Step 6: Final answer
    x = 235,947.06

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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.