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Finding the Fourth Proportional to 306,150.54, 422,492.76 and 168,335.28

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Solution

The fourth proportional to 306,150.54, 422,492.76 and 168,335.28 is: 232,305.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,150.54 : 422,492.76 = 168,335.28 : x
  2. Step 2: Convert to fraction form
    306,150.54/422,492.76 = 168,335.28/x
  3. Step 3: Cross multiply
    306,150.54x = 422,492.76 × 168,335.28
  4. Step 4: Simplify right side
    306,150.54x = 71,120,437,052.57
  5. Step 5: Solve for x
    x = 71,120,437,052.57/306,150.54
  6. Step 6: Final answer
    x = 232,305.44

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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.