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Finding the Fourth Proportional to 91,377, 126,100.26 and 51,633

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Solution

The fourth proportional to 91,377, 126,100.26 and 51,633 is: 71,253.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,377 : 126,100.26 = 51,633 : x
  2. Step 2: Convert to fraction form
    91,377/126,100.26 = 51,633/x
  3. Step 3: Cross multiply
    91,377x = 126,100.26 × 51,633
  4. Step 4: Simplify right side
    91,377x = 6,510,934,724.58
  5. Step 5: Solve for x
    x = 6,510,934,724.58/91,377
  6. Step 6: Final answer
    x = 71,253.54

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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.