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Finding the Fourth Proportional to 88,409.95, 132,646.90 and 54,636.44

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Solution

The fourth proportional to 88,409.95, 132,646.90 and 54,636.44 is: 81,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,409.95 : 132,646.90 = 54,636.44 : x
  2. Step 2: Convert to fraction form
    88,409.95/132,646.90 = 54,636.44/x
  3. Step 3: Cross multiply
    88,409.95x = 132,646.90 × 54,636.44
  4. Step 4: Simplify right side
    88,409.95x = 7,247,353,924.83
  5. Step 5: Solve for x
    x = 7,247,353,924.83/88,409.95
  6. Step 6: Final answer
    x = 81,974.41

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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.