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Finding the Fourth Proportional to 359,781.32, 539,577.88 and 106,993.69

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Solution

The fourth proportional to 359,781.32, 539,577.88 and 106,993.69 is: 160,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,781.32 : 539,577.88 = 106,993.69 : x
  2. Step 2: Convert to fraction form
    359,781.32/539,577.88 = 106,993.69/x
  3. Step 3: Cross multiply
    359,781.32x = 539,577.88 × 106,993.69
  4. Step 4: Simplify right side
    359,781.32x = 57,731,428,423.58
  5. Step 5: Solve for x
    x = 57,731,428,423.58/359,781.32
  6. Step 6: Final answer
    x = 160,462.55

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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.