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Finding the Fourth Proportional to 178,512.76, 267,582.32 and 60,143.20

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Solution

The fourth proportional to 178,512.76, 267,582.32 and 60,143.20 is: 90,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,512.76 : 267,582.32 = 60,143.20 : x
  2. Step 2: Convert to fraction form
    178,512.76/267,582.32 = 60,143.20/x
  3. Step 3: Cross multiply
    178,512.76x = 267,582.32 × 60,143.20
  4. Step 4: Simplify right side
    178,512.76x = 16,093,256,988.22
  5. Step 5: Solve for x
    x = 16,093,256,988.22/178,512.76
  6. Step 6: Final answer
    x = 90,151.86

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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.