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Finding the Fourth Proportional to 97,691.72, 146,274.10 and 63,873.87

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Solution

The fourth proportional to 97,691.72, 146,274.10 and 63,873.87 is: 95,638.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,691.72 : 146,274.10 = 63,873.87 : x
  2. Step 2: Convert to fraction form
    97,691.72/146,274.10 = 63,873.87/x
  3. Step 3: Cross multiply
    97,691.72x = 146,274.10 × 63,873.87
  4. Step 4: Simplify right side
    97,691.72x = 9,343,092,498.84
  5. Step 5: Solve for x
    x = 9,343,092,498.84/97,691.72
  6. Step 6: Final answer
    x = 95,638.53

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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.