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Finding the Fourth Proportional to 354,880.20, 532,320.30 and 105,529.80

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Solution

The fourth proportional to 354,880.20, 532,320.30 and 105,529.80 is: 158,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,880.20 : 532,320.30 = 105,529.80 : x
  2. Step 2: Convert to fraction form
    354,880.20/532,320.30 = 105,529.80/x
  3. Step 3: Cross multiply
    354,880.20x = 532,320.30 × 105,529.80
  4. Step 4: Simplify right side
    354,880.20x = 56,175,654,794.94
  5. Step 5: Solve for x
    x = 56,175,654,794.94/354,880.20
  6. Step 6: Final answer
    x = 158,294.70

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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.