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Finding the Fourth Proportional to 86,582.68, 129,874.02 and 63,040.05

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Solution

The fourth proportional to 86,582.68, 129,874.02 and 63,040.05 is: 94,560.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,582.68 : 129,874.02 = 63,040.05 : x
  2. Step 2: Convert to fraction form
    86,582.68/129,874.02 = 63,040.05/x
  3. Step 3: Cross multiply
    86,582.68x = 129,874.02 × 63,040.05
  4. Step 4: Simplify right side
    86,582.68x = 8,187,264,644.73
  5. Step 5: Solve for x
    x = 8,187,264,644.73/86,582.68
  6. Step 6: Final answer
    x = 94,560.07

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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.