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Finding the Fourth Proportional to 114,662.68, 158,253.28 and 66,915.88

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Solution

The fourth proportional to 114,662.68, 158,253.28 and 66,915.88 is: 92,354.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,662.68 : 158,253.28 = 66,915.88 : x
  2. Step 2: Convert to fraction form
    114,662.68/158,253.28 = 66,915.88/x
  3. Step 3: Cross multiply
    114,662.68x = 158,253.28 × 66,915.88
  4. Step 4: Simplify right side
    114,662.68x = 10,589,656,931.16
  5. Step 5: Solve for x
    x = 10,589,656,931.16/114,662.68
  6. Step 6: Final answer
    x = 92,354.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.