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Finding the Fourth Proportional to 178,565.53, 267,839.64 and 66,267.64

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Solution

The fourth proportional to 178,565.53, 267,839.64 and 66,267.64 is: 99,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,565.53 : 267,839.64 = 66,267.64 : x
  2. Step 2: Convert to fraction form
    178,565.53/267,839.64 = 66,267.64/x
  3. Step 3: Cross multiply
    178,565.53x = 267,839.64 × 66,267.64
  4. Step 4: Simplify right side
    178,565.53x = 17,749,100,841.25
  5. Step 5: Solve for x
    x = 17,749,100,841.25/178,565.53
  6. Step 6: Final answer
    x = 99,398.25

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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.