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Finding the Fourth Proportional to 99,616.82, 149,469.32 and 52,220.63

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Solution

The fourth proportional to 99,616.82, 149,469.32 and 52,220.63 is: 78,354.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,616.82 : 149,469.32 = 52,220.63 : x
  2. Step 2: Convert to fraction form
    99,616.82/149,469.32 = 52,220.63/x
  3. Step 3: Cross multiply
    99,616.82x = 149,469.32 × 52,220.63
  4. Step 4: Simplify right side
    99,616.82x = 7,805,382,534.35
  5. Step 5: Solve for x
    x = 7,805,382,534.35/99,616.82
  6. Step 6: Final answer
    x = 78,354.06

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1.5x scale

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.