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Finding the Fourth Proportional to 225,976.56, 311,853.44 and 124,006.40

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Solution

The fourth proportional to 225,976.56, 311,853.44 and 124,006.40 is: 171,132.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,976.56 : 311,853.44 = 124,006.40 : x
  2. Step 2: Convert to fraction form
    225,976.56/311,853.44 = 124,006.40/x
  3. Step 3: Cross multiply
    225,976.56x = 311,853.44 × 124,006.40
  4. Step 4: Simplify right side
    225,976.56x = 38,671,822,422.02
  5. Step 5: Solve for x
    x = 38,671,822,422.02/225,976.56
  6. Step 6: Final answer
    x = 171,132.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.