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Finding the Fourth Proportional to 354,920.67, 532,390.73 and 144,560.43

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Solution

The fourth proportional to 354,920.67, 532,390.73 and 144,560.43 is: 216,844.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,920.67 : 532,390.73 = 144,560.43 : x
  2. Step 2: Convert to fraction form
    354,920.67/532,390.73 = 144,560.43/x
  3. Step 3: Cross multiply
    354,920.67x = 532,390.73 × 144,560.43
  4. Step 4: Simplify right side
    354,920.67x = 76,962,632,134.01
  5. Step 5: Solve for x
    x = 76,962,632,134.01/354,920.67
  6. Step 6: Final answer
    x = 216,844.60

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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.