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Finding the Fourth Proportional to 178,385.02, 267,543.45 and 89,613.88

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Solution

The fourth proportional to 178,385.02, 267,543.45 and 89,613.88 is: 134,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,385.02 : 267,543.45 = 89,613.88 : x
  2. Step 2: Convert to fraction form
    178,385.02/267,543.45 = 89,613.88/x
  3. Step 3: Cross multiply
    178,385.02x = 267,543.45 × 89,613.88
  4. Step 4: Simplify right side
    178,385.02x = 23,975,606,623.09
  5. Step 5: Solve for x
    x = 23,975,606,623.09/178,385.02
  6. Step 6: Final answer
    x = 134,403.70

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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.