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Finding the Fourth Proportional to 225,392.88, 311,063.04 and 124,790.88

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Solution

The fourth proportional to 225,392.88, 311,063.04 and 124,790.88 is: 172,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,392.88 : 311,063.04 = 124,790.88 : x
  2. Step 2: Convert to fraction form
    225,392.88/311,063.04 = 124,790.88/x
  3. Step 3: Cross multiply
    225,392.88x = 311,063.04 × 124,790.88
  4. Step 4: Simplify right side
    225,392.88x = 38,817,830,497.08
  5. Step 5: Solve for x
    x = 38,817,830,497.08/225,392.88
  6. Step 6: Final answer
    x = 172,222.97

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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.