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Finding the Fourth Proportional to 359,617.70, 539,232.15 and 149,276.90

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Solution

The fourth proportional to 359,617.70, 539,232.15 and 149,276.90 is: 223,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,617.70 : 539,232.15 = 149,276.90 : x
  2. Step 2: Convert to fraction form
    359,617.70/539,232.15 = 149,276.90/x
  3. Step 3: Cross multiply
    359,617.70x = 539,232.15 × 149,276.90
  4. Step 4: Simplify right side
    359,617.70x = 80,494,903,732.34
  5. Step 5: Solve for x
    x = 80,494,903,732.34/359,617.70
  6. Step 6: Final answer
    x = 223,834.65

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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.