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Finding the Fourth Proportional to 88,212.21, 132,488.52 and 75,590.58

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Solution

The fourth proportional to 88,212.21, 132,488.52 and 75,590.58 is: 113,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,212.21 : 132,488.52 = 75,590.58 : x
  2. Step 2: Convert to fraction form
    88,212.21/132,488.52 = 75,590.58/x
  3. Step 3: Cross multiply
    88,212.21x = 132,488.52 × 75,590.58
  4. Step 4: Simplify right side
    88,212.21x = 10,014,884,070.14
  5. Step 5: Solve for x
    x = 10,014,884,070.14/88,212.21
  6. Step 6: Final answer
    x = 113,531.72

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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.