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Finding the Fourth Proportional to 91,376.70, 137,060.19 and 29,042.34

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Solution

The fourth proportional to 91,376.70, 137,060.19 and 29,042.34 is: 43,561.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,376.70 : 137,060.19 = 29,042.34 : x
  2. Step 2: Convert to fraction form
    91,376.70/137,060.19 = 29,042.34/x
  3. Step 3: Cross multiply
    91,376.70x = 137,060.19 × 29,042.34
  4. Step 4: Simplify right side
    91,376.70x = 3,980,548,638.44
  5. Step 5: Solve for x
    x = 3,980,548,638.44/91,376.70
  6. Step 6: Final answer
    x = 43,561.97

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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.