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Finding the Fourth Proportional to 122,040.52, 183,064 and 38,934.52

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Solution

The fourth proportional to 122,040.52, 183,064 and 38,934.52 is: 58,402.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,040.52 : 183,064 = 38,934.52 : x
  2. Step 2: Convert to fraction form
    122,040.52/183,064 = 38,934.52/x
  3. Step 3: Cross multiply
    122,040.52x = 183,064 × 38,934.52
  4. Step 4: Simplify right side
    122,040.52x = 7,127,508,969.28
  5. Step 5: Solve for x
    x = 7,127,508,969.28/122,040.52
  6. Step 6: Final answer
    x = 58,402.81

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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.