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Finding the Fourth Proportional to 88,486.84, 132,689.49 and 28,504.45

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Solution

The fourth proportional to 88,486.84, 132,689.49 and 28,504.45 is: 42,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,486.84 : 132,689.49 = 28,504.45 : x
  2. Step 2: Convert to fraction form
    88,486.84/132,689.49 = 28,504.45/x
  3. Step 3: Cross multiply
    88,486.84x = 132,689.49 × 28,504.45
  4. Step 4: Simplify right side
    88,486.84x = 3,782,240,933.23
  5. Step 5: Solve for x
    x = 3,782,240,933.23/88,486.84
  6. Step 6: Final answer
    x = 42,743.54

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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.