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Finding the Fourth Proportional to 295,854.75, 408,279.56 and 161,718.75

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Solution

The fourth proportional to 295,854.75, 408,279.56 and 161,718.75 is: 223,171.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,854.75 : 408,279.56 = 161,718.75 : x
  2. Step 2: Convert to fraction form
    295,854.75/408,279.56 = 161,718.75/x
  3. Step 3: Cross multiply
    295,854.75x = 408,279.56 × 161,718.75
  4. Step 4: Simplify right side
    295,854.75x = 66,026,459,285.16
  5. Step 5: Solve for x
    x = 66,026,459,285.16/295,854.75
  6. Step 6: Final answer
    x = 223,171.88

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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.