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Finding the Fourth Proportional to 55,863.81, 83,785.10 and 29,181.02

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Solution

The fourth proportional to 55,863.81, 83,785.10 and 29,181.02 is: 43,765.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,863.81 : 83,785.10 = 29,181.02 : x
  2. Step 2: Convert to fraction form
    55,863.81/83,785.10 = 29,181.02/x
  3. Step 3: Cross multiply
    55,863.81x = 83,785.10 × 29,181.02
  4. Step 4: Simplify right side
    55,863.81x = 2,444,934,113.97
  5. Step 5: Solve for x
    x = 2,444,934,113.97/55,863.81
  6. Step 6: Final answer
    x = 43,765.98

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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.