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Finding the Fourth Proportional to 225,520.97, 338,036.94 and 112,929.76

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Solution

The fourth proportional to 225,520.97, 338,036.94 and 112,929.76 is: 169,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,520.97 : 338,036.94 = 112,929.76 : x
  2. Step 2: Convert to fraction form
    225,520.97/338,036.94 = 112,929.76/x
  3. Step 3: Cross multiply
    225,520.97x = 338,036.94 × 112,929.76
  4. Step 4: Simplify right side
    225,520.97x = 38,174,430,505.33
  5. Step 5: Solve for x
    x = 38,174,430,505.33/225,520.97
  6. Step 6: Final answer
    x = 169,272.20

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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.