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Finding the Fourth Proportional to 124,157.72, 171,332.34 and 67,568.96

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Solution

The fourth proportional to 124,157.72, 171,332.34 and 67,568.96 is: 93,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,157.72 : 171,332.34 = 67,568.96 : x
  2. Step 2: Convert to fraction form
    124,157.72/171,332.34 = 67,568.96/x
  3. Step 3: Cross multiply
    124,157.72x = 171,332.34 × 67,568.96
  4. Step 4: Simplify right side
    124,157.72x = 11,576,748,028.17
  5. Step 5: Solve for x
    x = 11,576,748,028.17/124,157.72
  6. Step 6: Final answer
    x = 93,242.27

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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.