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Finding the Fourth Proportional to 452,755.85, 678,711.53 and 153,027.91

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Solution

The fourth proportional to 452,755.85, 678,711.53 and 153,027.91 is: 229,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,755.85 : 678,711.53 = 153,027.91 : x
  2. Step 2: Convert to fraction form
    452,755.85/678,711.53 = 153,027.91/x
  3. Step 3: Cross multiply
    452,755.85x = 678,711.53 × 153,027.91
  4. Step 4: Simplify right side
    452,755.85x = 103,861,805,614.59
  5. Step 5: Solve for x
    x = 103,861,805,614.59/452,755.85
  6. Step 6: Final answer
    x = 229,399.15

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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.