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Finding the Fourth Proportional to 124,859.29, 187,201.32 and 45,963.40

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Solution

The fourth proportional to 124,859.29, 187,201.32 and 45,963.40 is: 68,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,859.29 : 187,201.32 = 45,963.40 : x
  2. Step 2: Convert to fraction form
    124,859.29/187,201.32 = 45,963.40/x
  3. Step 3: Cross multiply
    124,859.29x = 187,201.32 × 45,963.40
  4. Step 4: Simplify right side
    124,859.29x = 8,604,409,151.69
  5. Step 5: Solve for x
    x = 8,604,409,151.69/124,859.29
  6. Step 6: Final answer
    x = 68,912.85

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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.