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Finding the Fourth Proportional to 124,158.64, 171,335.64 and 67,568.80

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Solution

The fourth proportional to 124,158.64, 171,335.64 and 67,568.80 is: 93,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,158.64 : 171,335.64 = 67,568.80 : x
  2. Step 2: Convert to fraction form
    124,158.64/171,335.64 = 67,568.80/x
  3. Step 3: Cross multiply
    124,158.64x = 171,335.64 × 67,568.80
  4. Step 4: Simplify right side
    124,158.64x = 11,576,943,592.03
  5. Step 5: Solve for x
    x = 11,576,943,592.03/124,158.64
  6. Step 6: Final answer
    x = 93,243.16

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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.