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Finding the Fourth Proportional to 57,868.73, 86,170.70 and 55,740.52

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Solution

The fourth proportional to 57,868.73, 86,170.70 and 55,740.52 is: 83,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,868.73 : 86,170.70 = 55,740.52 : x
  2. Step 2: Convert to fraction form
    57,868.73/86,170.70 = 55,740.52/x
  3. Step 3: Cross multiply
    57,868.73x = 86,170.70 × 55,740.52
  4. Step 4: Simplify right side
    57,868.73x = 4,803,199,626.76
  5. Step 5: Solve for x
    x = 4,803,199,626.76/57,868.73
  6. Step 6: Final answer
    x = 83,001.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.