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Finding the Fourth Proportional to 72,955.89, 100,677.33 and 41,124.51

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Solution

The fourth proportional to 72,955.89, 100,677.33 and 41,124.51 is: 56,750.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,955.89 : 100,677.33 = 41,124.51 : x
  2. Step 2: Convert to fraction form
    72,955.89/100,677.33 = 41,124.51/x
  3. Step 3: Cross multiply
    72,955.89x = 100,677.33 × 41,124.51
  4. Step 4: Simplify right side
    72,955.89x = 4,140,305,864.36
  5. Step 5: Solve for x
    x = 4,140,305,864.36/72,955.89
  6. Step 6: Final answer
    x = 56,750.81

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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.