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Finding the Fourth Proportional to 150,385.40, 225,626.70 and 100,521.80

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Solution

The fourth proportional to 150,385.40, 225,626.70 and 100,521.80 is: 150,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,385.40 : 225,626.70 = 100,521.80 : x
  2. Step 2: Convert to fraction form
    150,385.40/225,626.70 = 100,521.80/x
  3. Step 3: Cross multiply
    150,385.40x = 225,626.70 × 100,521.80
  4. Step 4: Simplify right side
    150,385.40x = 22,680,402,012.06
  5. Step 5: Solve for x
    x = 22,680,402,012.06/150,385.40
  6. Step 6: Final answer
    x = 150,815.19

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1.5x scale

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.