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Finding the Fourth Proportional to 88,760.61, 122,490.62 and 48,475.56

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Solution

The fourth proportional to 88,760.61, 122,490.62 and 48,475.56 is: 66,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,760.61 : 122,490.62 = 48,475.56 : x
  2. Step 2: Convert to fraction form
    88,760.61/122,490.62 = 48,475.56/x
  3. Step 3: Cross multiply
    88,760.61x = 122,490.62 × 48,475.56
  4. Step 4: Simplify right side
    88,760.61x = 5,937,801,156.87
  5. Step 5: Solve for x
    x = 5,937,801,156.87/88,760.61
  6. Step 6: Final answer
    x = 66,896.80

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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.