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Finding the Fourth Proportional to 359,581.75, 539,431.14 and 134,959.84

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Solution

The fourth proportional to 359,581.75, 539,431.14 and 134,959.84 is: 202,461.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,581.75 : 539,431.14 = 134,959.84 : x
  2. Step 2: Convert to fraction form
    359,581.75/539,431.14 = 134,959.84/x
  3. Step 3: Cross multiply
    359,581.75x = 539,431.14 × 134,959.84
  4. Step 4: Simplify right side
    359,581.75x = 72,801,540,345.42
  5. Step 5: Solve for x
    x = 72,801,540,345.42/359,581.75
  6. Step 6: Final answer
    x = 202,461.72

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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.