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Finding the Fourth Proportional to 178,339.92, 267,515.76 and 66,048.48

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Solution

The fourth proportional to 178,339.92, 267,515.76 and 66,048.48 is: 99,074.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,339.92 : 267,515.76 = 66,048.48 : x
  2. Step 2: Convert to fraction form
    178,339.92/267,515.76 = 66,048.48/x
  3. Step 3: Cross multiply
    178,339.92x = 267,515.76 × 66,048.48
  4. Step 4: Simplify right side
    178,339.92x = 17,669,009,324.04
  5. Step 5: Solve for x
    x = 17,669,009,324.04/178,339.92
  6. Step 6: Final answer
    x = 99,074.90

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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.