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Finding the Fourth Proportional to 122,414.68, 183,656.31 and 43,536.88

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Solution

The fourth proportional to 122,414.68, 183,656.31 and 43,536.88 is: 65,317.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,414.68 : 183,656.31 = 43,536.88 : x
  2. Step 2: Convert to fraction form
    122,414.68/183,656.31 = 43,536.88/x
  3. Step 3: Cross multiply
    122,414.68x = 183,656.31 × 43,536.88
  4. Step 4: Simplify right side
    122,414.68x = 7,995,822,729.71
  5. Step 5: Solve for x
    x = 7,995,822,729.71/122,414.68
  6. Step 6: Final answer
    x = 65,317.52

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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.