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Finding the Fourth Proportional to 74,567.69, 102,766.49 and 69,832.83

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Solution

The fourth proportional to 74,567.69, 102,766.49 and 69,832.83 is: 96,241.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,567.69 : 102,766.49 = 69,832.83 : x
  2. Step 2: Convert to fraction form
    74,567.69/102,766.49 = 69,832.83/x
  3. Step 3: Cross multiply
    74,567.69x = 102,766.49 × 69,832.83
  4. Step 4: Simplify right side
    74,567.69x = 7,176,474,476.70
  5. Step 5: Solve for x
    x = 7,176,474,476.70/74,567.69
  6. Step 6: Final answer
    x = 96,241.08

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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.