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Finding the Fourth Proportional to 95,456.91, 131,728.64 and 53,013.99

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Solution

The fourth proportional to 95,456.91, 131,728.64 and 53,013.99 is: 73,158.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,456.91 : 131,728.64 = 53,013.99 : x
  2. Step 2: Convert to fraction form
    95,456.91/131,728.64 = 53,013.99/x
  3. Step 3: Cross multiply
    95,456.91x = 131,728.64 × 53,013.99
  4. Step 4: Simplify right side
    95,456.91x = 6,983,460,538.60
  5. Step 5: Solve for x
    x = 6,983,460,538.60/95,456.91
  6. Step 6: Final answer
    x = 73,158.25

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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.