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Finding the Fourth Proportional to 122,034.38, 183,054.80 and 38,928.38

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Solution

The fourth proportional to 122,034.38, 183,054.80 and 38,928.38 is: 58,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,034.38 : 183,054.80 = 38,928.38 : x
  2. Step 2: Convert to fraction form
    122,034.38/183,054.80 = 38,928.38/x
  3. Step 3: Cross multiply
    122,034.38x = 183,054.80 × 38,928.38
  4. Step 4: Simplify right side
    122,034.38x = 7,126,025,997.27
  5. Step 5: Solve for x
    x = 7,126,025,997.27/122,034.38
  6. Step 6: Final answer
    x = 58,393.60

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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.