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Finding the Fourth Proportional to 63,889.40, 88,165.31 and 36,669.97

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Solution

The fourth proportional to 63,889.40, 88,165.31 and 36,669.97 is: 50,603.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,889.40 : 88,165.31 = 36,669.97 : x
  2. Step 2: Convert to fraction form
    63,889.40/88,165.31 = 36,669.97/x
  3. Step 3: Cross multiply
    63,889.40x = 88,165.31 × 36,669.97
  4. Step 4: Simplify right side
    63,889.40x = 3,233,018,703.67
  5. Step 5: Solve for x
    x = 3,233,018,703.67/63,889.40
  6. Step 6: Final answer
    x = 50,603.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.