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Finding the Fourth Proportional to 58,806.68, 81,166.05 and 36,165.15

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Solution

The fourth proportional to 58,806.68, 81,166.05 and 36,165.15 is: 49,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,806.68 : 81,166.05 = 36,165.15 : x
  2. Step 2: Convert to fraction form
    58,806.68/81,166.05 = 36,165.15/x
  3. Step 3: Cross multiply
    58,806.68x = 81,166.05 × 36,165.15
  4. Step 4: Simplify right side
    58,806.68x = 2,935,382,373.16
  5. Step 5: Solve for x
    x = 2,935,382,373.16/58,806.68
  6. Step 6: Final answer
    x = 49,915.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.