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Finding the Fourth Proportional to 155,525.20, 232,942.20 and 127,877.20

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Solution

The fourth proportional to 155,525.20, 232,942.20 and 127,877.20 is: 191,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,525.20 : 232,942.20 = 127,877.20 : x
  2. Step 2: Convert to fraction form
    155,525.20/232,942.20 = 127,877.20/x
  3. Step 3: Cross multiply
    155,525.20x = 232,942.20 × 127,877.20
  4. Step 4: Simplify right side
    155,525.20x = 29,787,996,297.84
  5. Step 5: Solve for x
    x = 29,787,996,297.84/155,525.20
  6. Step 6: Final answer
    x = 191,531.64

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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.