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Finding the Fourth Proportional to 229,352.92, 316,517.52 and 127,378.78

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Solution

The fourth proportional to 229,352.92, 316,517.52 and 127,378.78 is: 175,788.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,352.92 : 316,517.52 = 127,378.78 : x
  2. Step 2: Convert to fraction form
    229,352.92/316,517.52 = 127,378.78/x
  3. Step 3: Cross multiply
    229,352.92x = 316,517.52 × 127,378.78
  4. Step 4: Simplify right side
    229,352.92x = 40,317,615,546.23
  5. Step 5: Solve for x
    x = 40,317,615,546.23/229,352.92
  6. Step 6: Final answer
    x = 175,788.54

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1.5x scale

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.