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Finding the Fourth Proportional to 181,645.54, 272,468.45 and 86,853.42

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Solution

The fourth proportional to 181,645.54, 272,468.45 and 86,853.42 is: 130,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,645.54 : 272,468.45 = 86,853.42 : x
  2. Step 2: Convert to fraction form
    181,645.54/272,468.45 = 86,853.42/x
  3. Step 3: Cross multiply
    181,645.54x = 272,468.45 × 86,853.42
  4. Step 4: Simplify right side
    181,645.54x = 23,664,816,941.73
  5. Step 5: Solve for x
    x = 23,664,816,941.73/181,645.54
  6. Step 6: Final answer
    x = 130,280.20

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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.