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Finding the Fourth Proportional to 82,793.56, 124,202.76 and 38,424.86

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Solution

The fourth proportional to 82,793.56, 124,202.76 and 38,424.86 is: 57,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,793.56 : 124,202.76 = 38,424.86 : x
  2. Step 2: Convert to fraction form
    82,793.56/124,202.76 = 38,424.86/x
  3. Step 3: Cross multiply
    82,793.56x = 124,202.76 × 38,424.86
  4. Step 4: Simplify right side
    82,793.56x = 4,772,473,664.61
  5. Step 5: Solve for x
    x = 4,772,473,664.61/82,793.56
  6. Step 6: Final answer
    x = 57,643.05

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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.