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Finding the Fourth Proportional to 88,731.30, 133,048.35 and 36,081.30

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Solution

The fourth proportional to 88,731.30, 133,048.35 and 36,081.30 is: 54,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,731.30 : 133,048.35 = 36,081.30 : x
  2. Step 2: Convert to fraction form
    88,731.30/133,048.35 = 36,081.30/x
  3. Step 3: Cross multiply
    88,731.30x = 133,048.35 × 36,081.30
  4. Step 4: Simplify right side
    88,731.30x = 4,800,557,430.86
  5. Step 5: Solve for x
    x = 4,800,557,430.86/88,731.30
  6. Step 6: Final answer
    x = 54,102.19

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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.