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Finding the Fourth Proportional to 134,479.20, 201,645.90 and 55,504.20

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Solution

The fourth proportional to 134,479.20, 201,645.90 and 55,504.20 is: 83,226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,479.20 : 201,645.90 = 55,504.20 : x
  2. Step 2: Convert to fraction form
    134,479.20/201,645.90 = 55,504.20/x
  3. Step 3: Cross multiply
    134,479.20x = 201,645.90 × 55,504.20
  4. Step 4: Simplify right side
    134,479.20x = 11,192,194,362.78
  5. Step 5: Solve for x
    x = 11,192,194,362.78/134,479.20
  6. Step 6: Final answer
    x = 83,226.21

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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.