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Finding the Fourth Proportional to 122,649.18, 183,819.87 and 52,445.94

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Solution

The fourth proportional to 122,649.18, 183,819.87 and 52,445.94 is: 78,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,649.18 : 183,819.87 = 52,445.94 : x
  2. Step 2: Convert to fraction form
    122,649.18/183,819.87 = 52,445.94/x
  3. Step 3: Cross multiply
    122,649.18x = 183,819.87 × 52,445.94
  4. Step 4: Simplify right side
    122,649.18x = 9,640,605,872.83
  5. Step 5: Solve for x
    x = 9,640,605,872.83/122,649.18
  6. Step 6: Final answer
    x = 78,603.10

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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.