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Finding the Fourth Proportional to 58,800.68, 81,145.50 and 31,943.39

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Solution

The fourth proportional to 58,800.68, 81,145.50 and 31,943.39 is: 44,082.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,800.68 : 81,145.50 = 31,943.39 : x
  2. Step 2: Convert to fraction form
    58,800.68/81,145.50 = 31,943.39/x
  3. Step 3: Cross multiply
    58,800.68x = 81,145.50 × 31,943.39
  4. Step 4: Simplify right side
    58,800.68x = 2,592,062,353.25
  5. Step 5: Solve for x
    x = 2,592,062,353.25/58,800.68
  6. Step 6: Final answer
    x = 44,082.18

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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.