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Finding the Fourth Proportional to 86,809.26, 130,230.30 and 58,793.76

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Solution

The fourth proportional to 86,809.26, 130,230.30 and 58,793.76 is: 88,201.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,809.26 : 130,230.30 = 58,793.76 : x
  2. Step 2: Convert to fraction form
    86,809.26/130,230.30 = 58,793.76/x
  3. Step 3: Cross multiply
    86,809.26x = 130,230.30 × 58,793.76
  4. Step 4: Simplify right side
    86,809.26x = 7,656,729,002.93
  5. Step 5: Solve for x
    x = 7,656,729,002.93/86,809.26
  6. Step 6: Final answer
    x = 88,201.75

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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.