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Finding the Fourth Proportional to 100,326.65, 150,490.25 and 25,446.84

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Solution

The fourth proportional to 100,326.65, 150,490.25 and 25,446.84 is: 38,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,326.65 : 150,490.25 = 25,446.84 : x
  2. Step 2: Convert to fraction form
    100,326.65/150,490.25 = 25,446.84/x
  3. Step 3: Cross multiply
    100,326.65x = 150,490.25 × 25,446.84
  4. Step 4: Simplify right side
    100,326.65x = 3,829,501,186.08
  5. Step 5: Solve for x
    x = 3,829,501,186.08/100,326.65
  6. Step 6: Final answer
    x = 38,170.33

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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.