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Finding the Fourth Proportional to 69,309.84, 103,749.66 and 37,641.36

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Solution

The fourth proportional to 69,309.84, 103,749.66 and 37,641.36 is: 56,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,309.84 : 103,749.66 = 37,641.36 : x
  2. Step 2: Convert to fraction form
    69,309.84/103,749.66 = 37,641.36/x
  3. Step 3: Cross multiply
    69,309.84x = 103,749.66 × 37,641.36
  4. Step 4: Simplify right side
    69,309.84x = 3,905,278,301.94
  5. Step 5: Solve for x
    x = 3,905,278,301.94/69,309.84
  6. Step 6: Final answer
    x = 56,345.22

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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.