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Finding the Fourth Proportional to 98,652.57, 136,147.50 and 55,635.91

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Solution

The fourth proportional to 98,652.57, 136,147.50 and 55,635.91 is: 76,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,652.57 : 136,147.50 = 55,635.91 : x
  2. Step 2: Convert to fraction form
    98,652.57/136,147.50 = 55,635.91/x
  3. Step 3: Cross multiply
    98,652.57x = 136,147.50 × 55,635.91
  4. Step 4: Simplify right side
    98,652.57x = 7,574,690,056.73
  5. Step 5: Solve for x
    x = 7,574,690,056.73/98,652.57
  6. Step 6: Final answer
    x = 76,781.48

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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.