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Finding the Fourth Proportional to 88,303.74, 132,455.91 and 21,745.44

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Solution

The fourth proportional to 88,303.74, 132,455.91 and 21,745.44 is: 32,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,303.74 : 132,455.91 = 21,745.44 : x
  2. Step 2: Convert to fraction form
    88,303.74/132,455.91 = 21,745.44/x
  3. Step 3: Cross multiply
    88,303.74x = 132,455.91 × 21,745.44
  4. Step 4: Simplify right side
    88,303.74x = 2,880,312,043.55
  5. Step 5: Solve for x
    x = 2,880,312,043.55/88,303.74
  6. Step 6: Final answer
    x = 32,618.23

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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.