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Finding the Fourth Proportional to 220,263.38, 303,953.70 and 124,768.16

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Solution

The fourth proportional to 220,263.38, 303,953.70 and 124,768.16 is: 172,174.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,263.38 : 303,953.70 = 124,768.16 : x
  2. Step 2: Convert to fraction form
    220,263.38/303,953.70 = 124,768.16/x
  3. Step 3: Cross multiply
    220,263.38x = 303,953.70 × 124,768.16
  4. Step 4: Simplify right side
    220,263.38x = 37,923,743,874.19
  5. Step 5: Solve for x
    x = 37,923,743,874.19/220,263.38
  6. Step 6: Final answer
    x = 172,174.53

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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.