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Finding the Fourth Proportional to 85,225.20, 127,837.80 and 26,060.87

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Solution

The fourth proportional to 85,225.20, 127,837.80 and 26,060.87 is: 39,091.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,225.20 : 127,837.80 = 26,060.87 : x
  2. Step 2: Convert to fraction form
    85,225.20/127,837.80 = 26,060.87/x
  3. Step 3: Cross multiply
    85,225.20x = 127,837.80 × 26,060.87
  4. Step 4: Simplify right side
    85,225.20x = 3,331,564,286.89
  5. Step 5: Solve for x
    x = 3,331,564,286.89/85,225.20
  6. Step 6: Final answer
    x = 39,091.31

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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.