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Finding the Fourth Proportional to 359,284.67, 539,043.65 and 172,310.75

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Solution

The fourth proportional to 359,284.67, 539,043.65 and 172,310.75 is: 258,522.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,284.67 : 539,043.65 = 172,310.75 : x
  2. Step 2: Convert to fraction form
    359,284.67/539,043.65 = 172,310.75/x
  3. Step 3: Cross multiply
    359,284.67x = 539,043.65 × 172,310.75
  4. Step 4: Simplify right side
    359,284.67x = 92,883,014,752.68
  5. Step 5: Solve for x
    x = 92,883,014,752.68/359,284.67
  6. Step 6: Final answer
    x = 258,522.06

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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.