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Finding the Fourth Proportional to 172,474.30, 258,723.60 and 97,630.30

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Solution

The fourth proportional to 172,474.30, 258,723.60 and 97,630.30 is: 146,452.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,474.30 : 258,723.60 = 97,630.30 : x
  2. Step 2: Convert to fraction form
    172,474.30/258,723.60 = 97,630.30/x
  3. Step 3: Cross multiply
    172,474.30x = 258,723.60 × 97,630.30
  4. Step 4: Simplify right side
    172,474.30x = 25,259,262,685.08
  5. Step 5: Solve for x
    x = 25,259,262,685.08/172,474.30
  6. Step 6: Final answer
    x = 146,452.33

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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.