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Finding the Fourth Proportional to 306,061.52, 422,364.52 and 170,091.16

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Solution

The fourth proportional to 306,061.52, 422,364.52 and 170,091.16 is: 234,725.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,061.52 : 422,364.52 = 170,091.16 : x
  2. Step 2: Convert to fraction form
    306,061.52/422,364.52 = 170,091.16/x
  3. Step 3: Cross multiply
    306,061.52x = 422,364.52 × 170,091.16
  4. Step 4: Simplify right side
    306,061.52x = 71,840,471,149.64
  5. Step 5: Solve for x
    x = 71,840,471,149.64/306,061.52
  6. Step 6: Final answer
    x = 234,725.59

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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.