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Finding the Fourth Proportional to 84,062.72, 115,983.36 and 48,250.88

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Solution

The fourth proportional to 84,062.72, 115,983.36 and 48,250.88 is: 66,572.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,062.72 : 115,983.36 = 48,250.88 : x
  2. Step 2: Convert to fraction form
    84,062.72/115,983.36 = 48,250.88/x
  3. Step 3: Cross multiply
    84,062.72x = 115,983.36 × 48,250.88
  4. Step 4: Simplify right side
    84,062.72x = 5,596,299,185.36
  5. Step 5: Solve for x
    x = 5,596,299,185.36/84,062.72
  6. Step 6: Final answer
    x = 66,572.90

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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.