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Finding the Fourth Proportional to 238,480.80, 357,721.20 and 144,002.40

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Solution

The fourth proportional to 238,480.80, 357,721.20 and 144,002.40 is: 216,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,480.80 : 357,721.20 = 144,002.40 : x
  2. Step 2: Convert to fraction form
    238,480.80/357,721.20 = 144,002.40/x
  3. Step 3: Cross multiply
    238,480.80x = 357,721.20 × 144,002.40
  4. Step 4: Simplify right side
    238,480.80x = 51,512,711,330.88
  5. Step 5: Solve for x
    x = 51,512,711,330.88/238,480.80
  6. Step 6: Final answer
    x = 216,003.60

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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.