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Finding the Fourth Proportional to 178,568.79, 267,844.51 and 66,270.88

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Solution

The fourth proportional to 178,568.79, 267,844.51 and 66,270.88 is: 99,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,568.79 : 267,844.51 = 66,270.88 : x
  2. Step 2: Convert to fraction form
    178,568.79/267,844.51 = 66,270.88/x
  3. Step 3: Cross multiply
    178,568.79x = 267,844.51 × 66,270.88
  4. Step 4: Simplify right side
    178,568.79x = 17,750,291,049.51
  5. Step 5: Solve for x
    x = 17,750,291,049.51/178,568.79
  6. Step 6: Final answer
    x = 99,403.10

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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.