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Finding the Fourth Proportional to 359,579.68, 539,457.30 and 119,693.11

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Solution

The fourth proportional to 359,579.68, 539,457.30 and 119,693.11 is: 179,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,579.68 : 539,457.30 = 119,693.11 : x
  2. Step 2: Convert to fraction form
    359,579.68/539,457.30 = 119,693.11/x
  3. Step 3: Cross multiply
    359,579.68x = 539,457.30 × 119,693.11
  4. Step 4: Simplify right side
    359,579.68x = 64,569,321,949.20
  5. Step 5: Solve for x
    x = 64,569,321,949.20/359,579.68
  6. Step 6: Final answer
    x = 179,568.88

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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.