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Finding the Fourth Proportional to 69,301.41, 103,939.53 and 19,369.14

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Solution

The fourth proportional to 69,301.41, 103,939.53 and 19,369.14 is: 29,050.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,301.41 : 103,939.53 = 19,369.14 : x
  2. Step 2: Convert to fraction form
    69,301.41/103,939.53 = 19,369.14/x
  3. Step 3: Cross multiply
    69,301.41x = 103,939.53 × 19,369.14
  4. Step 4: Simplify right side
    69,301.41x = 2,013,219,308.10
  5. Step 5: Solve for x
    x = 2,013,219,308.10/69,301.41
  6. Step 6: Final answer
    x = 29,050.19

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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.