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Finding the Fourth Proportional to 92,755.34, 127,908.06 and 79,370.90

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Solution

The fourth proportional to 92,755.34, 127,908.06 and 79,370.90 is: 109,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,755.34 : 127,908.06 = 79,370.90 : x
  2. Step 2: Convert to fraction form
    92,755.34/127,908.06 = 79,370.90/x
  3. Step 3: Cross multiply
    92,755.34x = 127,908.06 × 79,370.90
  4. Step 4: Simplify right side
    92,755.34x = 10,152,177,839.45
  5. Step 5: Solve for x
    x = 10,152,177,839.45/92,755.34
  6. Step 6: Final answer
    x = 109,451.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.