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Finding the Fourth Proportional to 133,755.12, 200,616.24 and 77,625.75

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Solution

The fourth proportional to 133,755.12, 200,616.24 and 77,625.75 is: 116,429.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,755.12 : 200,616.24 = 77,625.75 : x
  2. Step 2: Convert to fraction form
    133,755.12/200,616.24 = 77,625.75/x
  3. Step 3: Cross multiply
    133,755.12x = 200,616.24 × 77,625.75
  4. Step 4: Simplify right side
    133,755.12x = 15,572,986,092.18
  5. Step 5: Solve for x
    x = 15,572,986,092.18/133,755.12
  6. Step 6: Final answer
    x = 116,429.08

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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.