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Finding the Fourth Proportional to 88,945.20, 133,493.40 and 36,392.40

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Solution

The fourth proportional to 88,945.20, 133,493.40 and 36,392.40 is: 54,619.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,945.20 : 133,493.40 = 36,392.40 : x
  2. Step 2: Convert to fraction form
    88,945.20/133,493.40 = 36,392.40/x
  3. Step 3: Cross multiply
    88,945.20x = 133,493.40 × 36,392.40
  4. Step 4: Simplify right side
    88,945.20x = 4,858,145,210.16
  5. Step 5: Solve for x
    x = 4,858,145,210.16/88,945.20
  6. Step 6: Final answer
    x = 54,619.53

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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.