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Finding the Fourth Proportional to 150,042.80, 225,064.20 and 39,234.80

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Solution

The fourth proportional to 150,042.80, 225,064.20 and 39,234.80 is: 58,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,042.80 : 225,064.20 = 39,234.80 : x
  2. Step 2: Convert to fraction form
    150,042.80/225,064.20 = 39,234.80/x
  3. Step 3: Cross multiply
    150,042.80x = 225,064.20 × 39,234.80
  4. Step 4: Simplify right side
    150,042.80x = 8,830,348,874.16
  5. Step 5: Solve for x
    x = 8,830,348,874.16/150,042.80
  6. Step 6: Final answer
    x = 58,852.20

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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.