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Finding the Fourth Proportional to 74,677.80, 111,900.04 and 63,538.68

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Solution

The fourth proportional to 74,677.80, 111,900.04 and 63,538.68 is: 95,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,677.80 : 111,900.04 = 63,538.68 : x
  2. Step 2: Convert to fraction form
    74,677.80/111,900.04 = 63,538.68/x
  3. Step 3: Cross multiply
    74,677.80x = 111,900.04 × 63,538.68
  4. Step 4: Simplify right side
    74,677.80x = 7,109,980,833.55
  5. Step 5: Solve for x
    x = 7,109,980,833.55/74,677.80
  6. Step 6: Final answer
    x = 95,208.76

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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.