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Finding the Fourth Proportional to 73,764, 110,369.04 and 69,762.72

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Solution

The fourth proportional to 73,764, 110,369.04 and 69,762.72 is: 104,382.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,764 : 110,369.04 = 69,762.72 : x
  2. Step 2: Convert to fraction form
    73,764/110,369.04 = 69,762.72/x
  3. Step 3: Cross multiply
    73,764x = 110,369.04 × 69,762.72
  4. Step 4: Simplify right side
    73,764x = 7,699,644,434.19
  5. Step 5: Solve for x
    x = 7,699,644,434.19/73,764
  6. Step 6: Final answer
    x = 104,382.14

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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.