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Finding the Fourth Proportional to 88,293.80, 132,513.60 and 40,981.70

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Solution

The fourth proportional to 88,293.80, 132,513.60 and 40,981.70 is: 61,506.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,293.80 : 132,513.60 = 40,981.70 : x
  2. Step 2: Convert to fraction form
    88,293.80/132,513.60 = 40,981.70/x
  3. Step 3: Cross multiply
    88,293.80x = 132,513.60 × 40,981.70
  4. Step 4: Simplify right side
    88,293.80x = 5,430,632,601.12
  5. Step 5: Solve for x
    x = 5,430,632,601.12/88,293.80
  6. Step 6: Final answer
    x = 61,506.39

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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.