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Finding the Fourth Proportional to 306,063.52, 422,367.28 and 170,093.16

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Solution

The fourth proportional to 306,063.52, 422,367.28 and 170,093.16 is: 234,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,063.52 : 422,367.28 = 170,093.16 : x
  2. Step 2: Convert to fraction form
    306,063.52/422,367.28 = 170,093.16/x
  3. Step 3: Cross multiply
    306,063.52x = 422,367.28 × 170,093.16
  4. Step 4: Simplify right side
    306,063.52x = 71,841,785,335.80
  5. Step 5: Solve for x
    x = 71,841,785,335.80/306,063.52
  6. Step 6: Final answer
    x = 234,728.35

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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.