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Finding the Fourth Proportional to 69,094.29, 103,641.44 and 19,174.40

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Solution

The fourth proportional to 69,094.29, 103,641.44 and 19,174.40 is: 28,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,094.29 : 103,641.44 = 19,174.40 : x
  2. Step 2: Convert to fraction form
    69,094.29/103,641.44 = 19,174.40/x
  3. Step 3: Cross multiply
    69,094.29x = 103,641.44 × 19,174.40
  4. Step 4: Simplify right side
    69,094.29x = 1,987,262,427.14
  5. Step 5: Solve for x
    x = 1,987,262,427.14/69,094.29
  6. Step 6: Final answer
    x = 28,761.60

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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.