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Finding the Fourth Proportional to 284,618.88, 426,697.92 and 118,531.20

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Solution

The fourth proportional to 284,618.88, 426,697.92 and 118,531.20 is: 177,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,618.88 : 426,697.92 = 118,531.20 : x
  2. Step 2: Convert to fraction form
    284,618.88/426,697.92 = 118,531.20/x
  3. Step 3: Cross multiply
    284,618.88x = 426,697.92 × 118,531.20
  4. Step 4: Simplify right side
    284,618.88x = 50,577,016,495.10
  5. Step 5: Solve for x
    x = 50,577,016,495.10/284,618.88
  6. Step 6: Final answer
    x = 177,700.85

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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.