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Finding the Fourth Proportional to 61,124.76, 91,679.34 and 23,659.20

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Solution

The fourth proportional to 61,124.76, 91,679.34 and 23,659.20 is: 35,485.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,124.76 : 91,679.34 = 23,659.20 : x
  2. Step 2: Convert to fraction form
    61,124.76/91,679.34 = 23,659.20/x
  3. Step 3: Cross multiply
    61,124.76x = 91,679.34 × 23,659.20
  4. Step 4: Simplify right side
    61,124.76x = 2,169,059,382.53
  5. Step 5: Solve for x
    x = 2,169,059,382.53/61,124.76
  6. Step 6: Final answer
    x = 35,485.78

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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.