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Finding the Fourth Proportional to 613,387.96, 920,181.82 and 181,149.16

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Solution

The fourth proportional to 613,387.96, 920,181.82 and 181,149.16 is: 271,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,387.96 : 920,181.82 = 181,149.16 : x
  2. Step 2: Convert to fraction form
    613,387.96/920,181.82 = 181,149.16/x
  3. Step 3: Cross multiply
    613,387.96x = 920,181.82 × 181,149.16
  4. Step 4: Simplify right side
    613,387.96x = 166,690,163,740.27
  5. Step 5: Solve for x
    x = 166,690,163,740.27/613,387.96
  6. Step 6: Final answer
    x = 271,753.24

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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.