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Finding the Fourth Proportional to 359,470.08, 539,320.32 and 172,494.72

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Solution

The fourth proportional to 359,470.08, 539,320.32 and 172,494.72 is: 258,797.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,470.08 : 539,320.32 = 172,494.72 : x
  2. Step 2: Convert to fraction form
    359,470.08/539,320.32 = 172,494.72/x
  3. Step 3: Cross multiply
    359,470.08x = 539,320.32 × 172,494.72
  4. Step 4: Simplify right side
    359,470.08x = 93,029,907,588.71
  5. Step 5: Solve for x
    x = 93,029,907,588.71/359,470.08
  6. Step 6: Final answer
    x = 258,797.36

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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.