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Finding the Fourth Proportional to 181,776.89, 250,787.17 and 105,254.21

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Solution

The fourth proportional to 181,776.89, 250,787.17 and 105,254.21 is: 145,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,776.89 : 250,787.17 = 105,254.21 : x
  2. Step 2: Convert to fraction form
    181,776.89/250,787.17 = 105,254.21/x
  3. Step 3: Cross multiply
    181,776.89x = 250,787.17 × 105,254.21
  4. Step 4: Simplify right side
    181,776.89x = 26,396,405,456.49
  5. Step 5: Solve for x
    x = 26,396,405,456.49/181,776.89
  6. Step 6: Final answer
    x = 145,213.21

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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.