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Finding the Fourth Proportional to 99,934.40, 149,866.32 and 43,801.76

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Solution

The fourth proportional to 99,934.40, 149,866.32 and 43,801.76 is: 65,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,934.40 : 149,866.32 = 43,801.76 : x
  2. Step 2: Convert to fraction form
    99,934.40/149,866.32 = 43,801.76/x
  3. Step 3: Cross multiply
    99,934.40x = 149,866.32 × 43,801.76
  4. Step 4: Simplify right side
    99,934.40x = 6,564,408,580.72
  5. Step 5: Solve for x
    x = 6,564,408,580.72/99,934.40
  6. Step 6: Final answer
    x = 65,687.18

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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.