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Finding the Fourth Proportional to 99,551.54, 149,348.90 and 29,436.50

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Solution

The fourth proportional to 99,551.54, 149,348.90 and 29,436.50 is: 44,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,551.54 : 149,348.90 = 29,436.50 : x
  2. Step 2: Convert to fraction form
    99,551.54/149,348.90 = 29,436.50/x
  3. Step 3: Cross multiply
    99,551.54x = 149,348.90 × 29,436.50
  4. Step 4: Simplify right side
    99,551.54x = 4,396,308,894.85
  5. Step 5: Solve for x
    x = 4,396,308,894.85/99,551.54
  6. Step 6: Final answer
    x = 44,161.13

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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.