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Finding the Fourth Proportional to 88,118.90, 132,134.97 and 31,950.62

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Solution

The fourth proportional to 88,118.90, 132,134.97 and 31,950.62 is: 47,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,118.90 : 132,134.97 = 31,950.62 : x
  2. Step 2: Convert to fraction form
    88,118.90/132,134.97 = 31,950.62/x
  3. Step 3: Cross multiply
    88,118.90x = 132,134.97 × 31,950.62
  4. Step 4: Simplify right side
    88,118.90x = 4,221,793,554.51
  5. Step 5: Solve for x
    x = 4,221,793,554.51/88,118.90
  6. Step 6: Final answer
    x = 47,910.19

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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.