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Finding the Fourth Proportional to 60,431.46, 83,390.52 and 34,939.46

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Solution

The fourth proportional to 60,431.46, 83,390.52 and 34,939.46 is: 48,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,431.46 : 83,390.52 = 34,939.46 : x
  2. Step 2: Convert to fraction form
    60,431.46/83,390.52 = 34,939.46/x
  3. Step 3: Cross multiply
    60,431.46x = 83,390.52 × 34,939.46
  4. Step 4: Simplify right side
    60,431.46x = 2,913,619,737.92
  5. Step 5: Solve for x
    x = 2,913,619,737.92/60,431.46
  6. Step 6: Final answer
    x = 48,213.62

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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.