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Finding the Fourth Proportional to 179,808.80, 269,252.40 and 132,807.20

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Solution

The fourth proportional to 179,808.80, 269,252.40 and 132,807.20 is: 198,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,808.80 : 269,252.40 = 132,807.20 : x
  2. Step 2: Convert to fraction form
    179,808.80/269,252.40 = 132,807.20/x
  3. Step 3: Cross multiply
    179,808.80x = 269,252.40 × 132,807.20
  4. Step 4: Simplify right side
    179,808.80x = 35,758,657,337.28
  5. Step 5: Solve for x
    x = 35,758,657,337.28/179,808.80
  6. Step 6: Final answer
    x = 198,870.45

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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.