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Finding the Fourth Proportional to 173,654.40, 260,481.60 and 84,921.60

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Solution

The fourth proportional to 173,654.40, 260,481.60 and 84,921.60 is: 127,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,654.40 : 260,481.60 = 84,921.60 : x
  2. Step 2: Convert to fraction form
    173,654.40/260,481.60 = 84,921.60/x
  3. Step 3: Cross multiply
    173,654.40x = 260,481.60 × 84,921.60
  4. Step 4: Simplify right side
    173,654.40x = 22,120,514,242.56
  5. Step 5: Solve for x
    x = 22,120,514,242.56/173,654.40
  6. Step 6: Final answer
    x = 127,382.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.