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Finding the Fourth Proportional to 86,360.88, 129,545.94 and 27,201.16

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Solution

The fourth proportional to 86,360.88, 129,545.94 and 27,201.16 is: 40,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,360.88 : 129,545.94 = 27,201.16 : x
  2. Step 2: Convert to fraction form
    86,360.88/129,545.94 = 27,201.16/x
  3. Step 3: Cross multiply
    86,360.88x = 129,545.94 × 27,201.16
  4. Step 4: Simplify right side
    86,360.88x = 3,523,799,841.29
  5. Step 5: Solve for x
    x = 3,523,799,841.29/86,360.88
  6. Step 6: Final answer
    x = 40,803.20

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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.