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Finding the Fourth Proportional to 181,557.20, 272,335.80 and 122,574.80

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Solution

The fourth proportional to 181,557.20, 272,335.80 and 122,574.80 is: 183,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,557.20 : 272,335.80 = 122,574.80 : x
  2. Step 2: Convert to fraction form
    181,557.20/272,335.80 = 122,574.80/x
  3. Step 3: Cross multiply
    181,557.20x = 272,335.80 × 122,574.80
  4. Step 4: Simplify right side
    181,557.20x = 33,381,506,217.84
  5. Step 5: Solve for x
    x = 33,381,506,217.84/181,557.20
  6. Step 6: Final answer
    x = 183,862.20

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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.