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Finding the Fourth Proportional to 88,675.86, 132,984.26 and 28,690.08

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Solution

The fourth proportional to 88,675.86, 132,984.26 and 28,690.08 is: 43,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,675.86 : 132,984.26 = 28,690.08 : x
  2. Step 2: Convert to fraction form
    88,675.86/132,984.26 = 28,690.08/x
  3. Step 3: Cross multiply
    88,675.86x = 132,984.26 × 28,690.08
  4. Step 4: Simplify right side
    88,675.86x = 3,815,329,058.14
  5. Step 5: Solve for x
    x = 3,815,329,058.14/88,675.86
  6. Step 6: Final answer
    x = 43,025.57

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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.