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Finding the Fourth Proportional to 69,066.64, 103,794.96 and 40,991.94

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Solution

The fourth proportional to 69,066.64, 103,794.96 and 40,991.94 is: 61,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,066.64 : 103,794.96 = 40,991.94 : x
  2. Step 2: Convert to fraction form
    69,066.64/103,794.96 = 40,991.94/x
  3. Step 3: Cross multiply
    69,066.64x = 103,794.96 × 40,991.94
  4. Step 4: Simplify right side
    69,066.64x = 4,254,756,253.65
  5. Step 5: Solve for x
    x = 4,254,756,253.65/69,066.64
  6. Step 6: Final answer
    x = 61,603.64

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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.