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Finding the Fourth Proportional to 97,168.97, 145,753.46 and 55,586.81

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Solution

The fourth proportional to 97,168.97, 145,753.46 and 55,586.81 is: 83,380.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,168.97 : 145,753.46 = 55,586.81 : x
  2. Step 2: Convert to fraction form
    97,168.97/145,753.46 = 55,586.81/x
  3. Step 3: Cross multiply
    97,168.97x = 145,753.46 × 55,586.81
  4. Step 4: Simplify right side
    97,168.97x = 8,101,970,182.76
  5. Step 5: Solve for x
    x = 8,101,970,182.76/97,168.97
  6. Step 6: Final answer
    x = 83,380.22

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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.