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Finding the Fourth Proportional to 381,659.04, 572,592.24 and 115,428.24

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Solution

The fourth proportional to 381,659.04, 572,592.24 and 115,428.24 is: 173,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,659.04 : 572,592.24 = 115,428.24 : x
  2. Step 2: Convert to fraction form
    381,659.04/572,592.24 = 115,428.24/x
  3. Step 3: Cross multiply
    381,659.04x = 572,592.24 × 115,428.24
  4. Step 4: Simplify right side
    381,659.04x = 66,093,314,500.86
  5. Step 5: Solve for x
    x = 66,093,314,500.86/381,659.04
  6. Step 6: Final answer
    x = 173,173.72

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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.