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Finding the Fourth Proportional to 99,374.76, 149,063.22 and 29,255.40

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Solution

The fourth proportional to 99,374.76, 149,063.22 and 29,255.40 is: 43,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,374.76 : 149,063.22 = 29,255.40 : x
  2. Step 2: Convert to fraction form
    99,374.76/149,063.22 = 29,255.40/x
  3. Step 3: Cross multiply
    99,374.76x = 149,063.22 × 29,255.40
  4. Step 4: Simplify right side
    99,374.76x = 4,360,904,126.39
  5. Step 5: Solve for x
    x = 4,360,904,126.39/99,374.76
  6. Step 6: Final answer
    x = 43,883.42

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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.