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Finding the Fourth Proportional to 74,143.82, 111,214.85 and 29,769.79

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Solution

The fourth proportional to 74,143.82, 111,214.85 and 29,769.79 is: 44,654.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.82 : 111,214.85 = 29,769.79 : x
  2. Step 2: Convert to fraction form
    74,143.82/111,214.85 = 29,769.79/x
  3. Step 3: Cross multiply
    74,143.82x = 111,214.85 × 29,769.79
  4. Step 4: Simplify right side
    74,143.82x = 3,310,842,525.77
  5. Step 5: Solve for x
    x = 3,310,842,525.77/74,143.82
  6. Step 6: Final answer
    x = 44,654.33

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1.5x scale

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.