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Finding the Fourth Proportional to 72,283.38, 99,761.55 and 41,650.51

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Solution

The fourth proportional to 72,283.38, 99,761.55 and 41,650.51 is: 57,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,283.38 : 99,761.55 = 41,650.51 : x
  2. Step 2: Convert to fraction form
    72,283.38/99,761.55 = 41,650.51/x
  3. Step 3: Cross multiply
    72,283.38x = 99,761.55 × 41,650.51
  4. Step 4: Simplify right side
    72,283.38x = 4,155,119,435.89
  5. Step 5: Solve for x
    x = 4,155,119,435.89/72,283.38
  6. Step 6: Final answer
    x = 57,483.75

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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.