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Finding the Fourth Proportional to 244,931.20, 338,020.20 and 163,119.20

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Solution

The fourth proportional to 244,931.20, 338,020.20 and 163,119.20 is: 225,114.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,931.20 : 338,020.20 = 163,119.20 : x
  2. Step 2: Convert to fraction form
    244,931.20/338,020.20 = 163,119.20/x
  3. Step 3: Cross multiply
    244,931.20x = 338,020.20 × 163,119.20
  4. Step 4: Simplify right side
    244,931.20x = 55,137,584,607.84
  5. Step 5: Solve for x
    x = 55,137,584,607.84/244,931.20
  6. Step 6: Final answer
    x = 225,114.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.