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Finding the Fourth Proportional to 86,718.59, 130,087.87 and 33,398.14

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Solution

The fourth proportional to 86,718.59, 130,087.87 and 33,398.14 is: 50,101.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,718.59 : 130,087.87 = 33,398.14 : x
  2. Step 2: Convert to fraction form
    86,718.59/130,087.87 = 33,398.14/x
  3. Step 3: Cross multiply
    86,718.59x = 130,087.87 × 33,398.14
  4. Step 4: Simplify right side
    86,718.59x = 4,344,692,894.56
  5. Step 5: Solve for x
    x = 4,344,692,894.56/86,718.59
  6. Step 6: Final answer
    x = 50,101.06

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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.