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Finding the Fourth Proportional to 57,990.51, 80,022.87 and 32,148.81

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Solution

The fourth proportional to 57,990.51, 80,022.87 and 32,148.81 is: 44,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,990.51 : 80,022.87 = 32,148.81 : x
  2. Step 2: Convert to fraction form
    57,990.51/80,022.87 = 32,148.81/x
  3. Step 3: Cross multiply
    57,990.51x = 80,022.87 × 32,148.81
  4. Step 4: Simplify right side
    57,990.51x = 2,572,639,582.45
  5. Step 5: Solve for x
    x = 2,572,639,582.45/57,990.51
  6. Step 6: Final answer
    x = 44,363.11

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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.