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Finding the Fourth Proportional to 359,286.67, 539,046.65 and 172,312.75

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Solution

The fourth proportional to 359,286.67, 539,046.65 and 172,312.75 is: 258,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,286.67 : 539,046.65 = 172,312.75 : x
  2. Step 2: Convert to fraction form
    359,286.67/539,046.65 = 172,312.75/x
  3. Step 3: Cross multiply
    359,286.67x = 539,046.65 × 172,312.75
  4. Step 4: Simplify right side
    359,286.67x = 92,884,610,639.79
  5. Step 5: Solve for x
    x = 92,884,610,639.79/359,286.67
  6. Step 6: Final answer
    x = 258,525.07

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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.