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Finding the Fourth Proportional to 153,394.40, 230,179.44 and 83,279.60

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Solution

The fourth proportional to 153,394.40, 230,179.44 and 83,279.60 is: 124,967.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,394.40 : 230,179.44 = 83,279.60 : x
  2. Step 2: Convert to fraction form
    153,394.40/230,179.44 = 83,279.60/x
  3. Step 3: Cross multiply
    153,394.40x = 230,179.44 × 83,279.60
  4. Step 4: Simplify right side
    153,394.40x = 19,169,251,691.42
  5. Step 5: Solve for x
    x = 19,169,251,691.42/153,394.40
  6. Step 6: Final answer
    x = 124,967.09

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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.