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Finding the Fourth Proportional to 83,274.40, 124,911.60 and 58,342.60

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Solution

The fourth proportional to 83,274.40, 124,911.60 and 58,342.60 is: 87,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,274.40 : 124,911.60 = 58,342.60 : x
  2. Step 2: Convert to fraction form
    83,274.40/124,911.60 = 58,342.60/x
  3. Step 3: Cross multiply
    83,274.40x = 124,911.60 × 58,342.60
  4. Step 4: Simplify right side
    83,274.40x = 7,287,667,514.16
  5. Step 5: Solve for x
    x = 7,287,667,514.16/83,274.40
  6. Step 6: Final answer
    x = 87,513.90

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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.