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Finding the Fourth Proportional to 72,876.54, 100,569.96 and 41,045.97

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Solution

The fourth proportional to 72,876.54, 100,569.96 and 41,045.97 is: 56,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,876.54 : 100,569.96 = 41,045.97 : x
  2. Step 2: Convert to fraction form
    72,876.54/100,569.96 = 41,045.97/x
  3. Step 3: Cross multiply
    72,876.54x = 100,569.96 × 41,045.97
  4. Step 4: Simplify right side
    72,876.54x = 4,127,991,561.06
  5. Step 5: Solve for x
    x = 4,127,991,561.06/72,876.54
  6. Step 6: Final answer
    x = 56,643.63

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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.