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Finding the Fourth Proportional to 181,203.70, 271,805.55 and 118,218.10

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Solution

The fourth proportional to 181,203.70, 271,805.55 and 118,218.10 is: 177,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,203.70 : 271,805.55 = 118,218.10 : x
  2. Step 2: Convert to fraction form
    181,203.70/271,805.55 = 118,218.10/x
  3. Step 3: Cross multiply
    181,203.70x = 271,805.55 × 118,218.10
  4. Step 4: Simplify right side
    181,203.70x = 32,132,335,690.46
  5. Step 5: Solve for x
    x = 32,132,335,690.46/181,203.70
  6. Step 6: Final answer
    x = 177,327.15

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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.