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Finding the Fourth Proportional to 225,965.49, 338,937.98 and 99,571.92

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Solution

The fourth proportional to 225,965.49, 338,937.98 and 99,571.92 is: 149,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,965.49 : 338,937.98 = 99,571.92 : x
  2. Step 2: Convert to fraction form
    225,965.49/338,937.98 = 99,571.92/x
  3. Step 3: Cross multiply
    225,965.49x = 338,937.98 × 99,571.92
  4. Step 4: Simplify right side
    225,965.49x = 33,748,705,429.52
  5. Step 5: Solve for x
    x = 33,748,705,429.52/225,965.49
  6. Step 6: Final answer
    x = 149,353.36

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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.