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Finding the Fourth Proportional to 225,768.91, 311,561.54 and 125,166.91

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Solution

The fourth proportional to 225,768.91, 311,561.54 and 125,166.91 is: 172,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,768.91 : 311,561.54 = 125,166.91 : x
  2. Step 2: Convert to fraction form
    225,768.91/311,561.54 = 125,166.91/x
  3. Step 3: Cross multiply
    225,768.91x = 311,561.54 × 125,166.91
  4. Step 4: Simplify right side
    225,768.91x = 38,997,195,236.64
  5. Step 5: Solve for x
    x = 38,997,195,236.64/225,768.91
  6. Step 6: Final answer
    x = 172,730.58

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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.