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Finding the Fourth Proportional to 83,070.72, 124,606.08 and 27,671.04

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Solution

The fourth proportional to 83,070.72, 124,606.08 and 27,671.04 is: 41,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,070.72 : 124,606.08 = 27,671.04 : x
  2. Step 2: Convert to fraction form
    83,070.72/124,606.08 = 27,671.04/x
  3. Step 3: Cross multiply
    83,070.72x = 124,606.08 × 27,671.04
  4. Step 4: Simplify right side
    83,070.72x = 3,447,979,823.92
  5. Step 5: Solve for x
    x = 3,447,979,823.92/83,070.72
  6. Step 6: Final answer
    x = 41,506.56

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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.