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Finding the Fourth Proportional to 99,174.01, 136,825.93 and 63,384.97

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Solution

The fourth proportional to 99,174.01, 136,825.93 and 63,384.97 is: 87,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,174.01 : 136,825.93 = 63,384.97 : x
  2. Step 2: Convert to fraction form
    99,174.01/136,825.93 = 63,384.97/x
  3. Step 3: Cross multiply
    99,174.01x = 136,825.93 × 63,384.97
  4. Step 4: Simplify right side
    99,174.01x = 8,672,707,468.27
  5. Step 5: Solve for x
    x = 8,672,707,468.27/99,174.01
  6. Step 6: Final answer
    x = 87,449.40

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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.