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Finding the Fourth Proportional to 178,291.62, 267,423.90 and 65,919.28

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Solution

The fourth proportional to 178,291.62, 267,423.90 and 65,919.28 is: 98,873.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,291.62 : 267,423.90 = 65,919.28 : x
  2. Step 2: Convert to fraction form
    178,291.62/267,423.90 = 65,919.28/x
  3. Step 3: Cross multiply
    178,291.62x = 267,423.90 × 65,919.28
  4. Step 4: Simplify right side
    178,291.62x = 17,628,390,942.79
  5. Step 5: Solve for x
    x = 17,628,390,942.79/178,291.62
  6. Step 6: Final answer
    x = 98,873.92

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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.