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Finding the Fourth Proportional to 359,690.58, 539,164.07 and 134,892.49

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Solution

The fourth proportional to 359,690.58, 539,164.07 and 134,892.49 is: 202,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,690.58 : 539,164.07 = 134,892.49 : x
  2. Step 2: Convert to fraction form
    359,690.58/539,164.07 = 134,892.49/x
  3. Step 3: Cross multiply
    359,690.58x = 539,164.07 × 134,892.49
  4. Step 4: Simplify right side
    359,690.58x = 72,729,183,920.83
  5. Step 5: Solve for x
    x = 72,729,183,920.83/359,690.58
  6. Step 6: Final answer
    x = 202,199.30

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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.