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Finding the Fourth Proportional to 75,142.98, 112,755.95 and 41,881.77

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Solution

The fourth proportional to 75,142.98, 112,755.95 and 41,881.77 is: 62,845.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,142.98 : 112,755.95 = 41,881.77 : x
  2. Step 2: Convert to fraction form
    75,142.98/112,755.95 = 41,881.77/x
  3. Step 3: Cross multiply
    75,142.98x = 112,755.95 × 41,881.77
  4. Step 4: Simplify right side
    75,142.98x = 4,722,418,554.62
  5. Step 5: Solve for x
    x = 4,722,418,554.62/75,142.98
  6. Step 6: Final answer
    x = 62,845.77

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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.