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Finding the Fourth Proportional to 97,158.60, 134,076.60 and 54,717.30

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Solution

The fourth proportional to 97,158.60, 134,076.60 and 54,717.30 is: 75,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,158.60 : 134,076.60 = 54,717.30 : x
  2. Step 2: Convert to fraction form
    97,158.60/134,076.60 = 54,717.30/x
  3. Step 3: Cross multiply
    97,158.60x = 134,076.60 × 54,717.30
  4. Step 4: Simplify right side
    97,158.60x = 7,336,309,545.18
  5. Step 5: Solve for x
    x = 7,336,309,545.18/97,158.60
  6. Step 6: Final answer
    x = 75,508.60

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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.