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Finding the Fourth Proportional to 181,542.80, 272,083.80 and 161,728.40

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Solution

The fourth proportional to 181,542.80, 272,083.80 and 161,728.40 is: 242,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,542.80 : 272,083.80 = 161,728.40 : x
  2. Step 2: Convert to fraction form
    181,542.80/272,083.80 = 161,728.40/x
  3. Step 3: Cross multiply
    181,542.80x = 272,083.80 × 161,728.40
  4. Step 4: Simplify right side
    181,542.80x = 44,003,677,639.92
  5. Step 5: Solve for x
    x = 44,003,677,639.92/181,542.80
  6. Step 6: Final answer
    x = 242,387.35

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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.