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Finding the Fourth Proportional to 230,651.52, 318,245.04 and 140,005.32

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Solution

The fourth proportional to 230,651.52, 318,245.04 and 140,005.32 is: 193,174.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,651.52 : 318,245.04 = 140,005.32 : x
  2. Step 2: Convert to fraction form
    230,651.52/318,245.04 = 140,005.32/x
  3. Step 3: Cross multiply
    230,651.52x = 318,245.04 × 140,005.32
  4. Step 4: Simplify right side
    230,651.52x = 44,555,998,663.61
  5. Step 5: Solve for x
    x = 44,555,998,663.61/230,651.52
  6. Step 6: Final answer
    x = 193,174.53

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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.