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Finding the Fourth Proportional to 72,347.68, 108,506.92 and 50,361.04

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Solution

The fourth proportional to 72,347.68, 108,506.92 and 50,361.04 is: 75,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,347.68 : 108,506.92 = 50,361.04 : x
  2. Step 2: Convert to fraction form
    72,347.68/108,506.92 = 50,361.04/x
  3. Step 3: Cross multiply
    72,347.68x = 108,506.92 × 50,361.04
  4. Step 4: Simplify right side
    72,347.68x = 5,464,521,338.40
  5. Step 5: Solve for x
    x = 5,464,521,338.40/72,347.68
  6. Step 6: Final answer
    x = 75,531.40

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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.