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Finding the Fourth Proportional to 122,061.78, 183,093.28 and 43,176.08

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Solution

The fourth proportional to 122,061.78, 183,093.28 and 43,176.08 is: 64,764.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,061.78 : 183,093.28 = 43,176.08 : x
  2. Step 2: Convert to fraction form
    122,061.78/183,093.28 = 43,176.08/x
  3. Step 3: Cross multiply
    122,061.78x = 183,093.28 × 43,176.08
  4. Step 4: Simplify right side
    122,061.78x = 7,905,250,104.74
  5. Step 5: Solve for x
    x = 7,905,250,104.74/122,061.78
  6. Step 6: Final answer
    x = 64,764.34

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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.