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Finding the Fourth Proportional to 84,394.60, 116,358.68 and 54,126.52

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Solution

The fourth proportional to 84,394.60, 116,358.68 and 54,126.52 is: 74,626.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,394.60 : 116,358.68 = 54,126.52 : x
  2. Step 2: Convert to fraction form
    84,394.60/116,358.68 = 54,126.52/x
  3. Step 3: Cross multiply
    84,394.60x = 116,358.68 × 54,126.52
  4. Step 4: Simplify right side
    84,394.60x = 6,298,090,264.61
  5. Step 5: Solve for x
    x = 6,298,090,264.61/84,394.60
  6. Step 6: Final answer
    x = 74,626.70

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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.