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Finding the Fourth Proportional to 86,894.72, 130,237.92 and 44,794.88

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Solution

The fourth proportional to 86,894.72, 130,237.92 and 44,794.88 is: 67,138.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,894.72 : 130,237.92 = 44,794.88 : x
  2. Step 2: Convert to fraction form
    86,894.72/130,237.92 = 44,794.88/x
  3. Step 3: Cross multiply
    86,894.72x = 130,237.92 × 44,794.88
  4. Step 4: Simplify right side
    86,894.72x = 5,833,991,997.85
  5. Step 5: Solve for x
    x = 5,833,991,997.85/86,894.72
  6. Step 6: Final answer
    x = 67,138.62

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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.