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Finding the Fourth Proportional to 182,405.43, 251,723.07 and 105,930.90

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Solution

The fourth proportional to 182,405.43, 251,723.07 and 105,930.90 is: 146,186.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,405.43 : 251,723.07 = 105,930.90 : x
  2. Step 2: Convert to fraction form
    182,405.43/251,723.07 = 105,930.90/x
  3. Step 3: Cross multiply
    182,405.43x = 251,723.07 × 105,930.90
  4. Step 4: Simplify right side
    182,405.43x = 26,665,251,355.86
  5. Step 5: Solve for x
    x = 26,665,251,355.86/182,405.43
  6. Step 6: Final answer
    x = 146,186.72

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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.