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Finding the Fourth Proportional to 82,988.80, 124,483.12 and 26,837.30

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Solution

The fourth proportional to 82,988.80, 124,483.12 and 26,837.30 is: 40,255.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,988.80 : 124,483.12 = 26,837.30 : x
  2. Step 2: Convert to fraction form
    82,988.80/124,483.12 = 26,837.30/x
  3. Step 3: Cross multiply
    82,988.80x = 124,483.12 × 26,837.30
  4. Step 4: Simplify right side
    82,988.80x = 3,340,790,836.38
  5. Step 5: Solve for x
    x = 3,340,790,836.38/82,988.80
  6. Step 6: Final answer
    x = 40,255.92

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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.