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Finding the Fourth Proportional to 72,543.93, 108,849.39 and 33,113.13

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Solution

The fourth proportional to 72,543.93, 108,849.39 and 33,113.13 is: 49,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,543.93 : 108,849.39 = 33,113.13 : x
  2. Step 2: Convert to fraction form
    72,543.93/108,849.39 = 33,113.13/x
  3. Step 3: Cross multiply
    72,543.93x = 108,849.39 × 33,113.13
  4. Step 4: Simplify right side
    72,543.93x = 3,604,344,001.49
  5. Step 5: Solve for x
    x = 3,604,344,001.49/72,543.93
  6. Step 6: Final answer
    x = 49,684.98

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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.