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Finding the Fourth Proportional to 86,863.96, 130,335.90 and 60,250.60

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Solution

The fourth proportional to 86,863.96, 130,335.90 and 60,250.60 is: 90,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,863.96 : 130,335.90 = 60,250.60 : x
  2. Step 2: Convert to fraction form
    86,863.96/130,335.90 = 60,250.60/x
  3. Step 3: Cross multiply
    86,863.96x = 130,335.90 × 60,250.60
  4. Step 4: Simplify right side
    86,863.96x = 7,852,816,176.54
  5. Step 5: Solve for x
    x = 7,852,816,176.54/86,863.96
  6. Step 6: Final answer
    x = 90,403.62

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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.