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Finding the Fourth Proportional to 354,806.20, 532,274.10 and 144,465.40

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Solution

The fourth proportional to 354,806.20, 532,274.10 and 144,465.40 is: 216,724.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,806.20 : 532,274.10 = 144,465.40 : x
  2. Step 2: Convert to fraction form
    354,806.20/532,274.10 = 144,465.40/x
  3. Step 3: Cross multiply
    354,806.20x = 532,274.10 × 144,465.40
  4. Step 4: Simplify right side
    354,806.20x = 76,895,190,766.14
  5. Step 5: Solve for x
    x = 76,895,190,766.14/354,806.20
  6. Step 6: Final answer
    x = 216,724.48

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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.