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Finding the Fourth Proportional to 86,708.01, 130,048.41 and 27,535.89

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Solution

The fourth proportional to 86,708.01, 130,048.41 and 27,535.89 is: 41,299.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.01 : 130,048.41 = 27,535.89 : x
  2. Step 2: Convert to fraction form
    86,708.01/130,048.41 = 27,535.89/x
  3. Step 3: Cross multiply
    86,708.01x = 130,048.41 × 27,535.89
  4. Step 4: Simplify right side
    86,708.01x = 3,580,998,712.43
  5. Step 5: Solve for x
    x = 3,580,998,712.43/86,708.01
  6. Step 6: Final answer
    x = 41,299.51

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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.