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Finding the Fourth Proportional to 58,777.16, 81,113.02 and 31,919.90

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Solution

The fourth proportional to 58,777.16, 81,113.02 and 31,919.90 is: 44,049.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,777.16 : 81,113.02 = 31,919.90 : x
  2. Step 2: Convert to fraction form
    58,777.16/81,113.02 = 31,919.90/x
  3. Step 3: Cross multiply
    58,777.16x = 81,113.02 × 31,919.90
  4. Step 4: Simplify right side
    58,777.16x = 2,589,119,001.73
  5. Step 5: Solve for x
    x = 2,589,119,001.73/58,777.16
  6. Step 6: Final answer
    x = 44,049.75

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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.