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Finding the Fourth Proportional to 88,674.86, 132,982.76 and 28,689.08

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Solution

The fourth proportional to 88,674.86, 132,982.76 and 28,689.08 is: 43,024.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,674.86 : 132,982.76 = 28,689.08 : x
  2. Step 2: Convert to fraction form
    88,674.86/132,982.76 = 28,689.08/x
  3. Step 3: Cross multiply
    88,674.86x = 132,982.76 × 28,689.08
  4. Step 4: Simplify right side
    88,674.86x = 3,815,153,040.26
  5. Step 5: Solve for x
    x = 3,815,153,040.26/88,674.86
  6. Step 6: Final answer
    x = 43,024.07

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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.