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Finding the Fourth Proportional to 221,986.37, 332,924.13 and 87,077.86

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Solution

The fourth proportional to 221,986.37, 332,924.13 and 87,077.86 is: 130,595.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,986.37 : 332,924.13 = 87,077.86 : x
  2. Step 2: Convert to fraction form
    221,986.37/332,924.13 = 87,077.86/x
  3. Step 3: Cross multiply
    221,986.37x = 332,924.13 × 87,077.86
  4. Step 4: Simplify right side
    221,986.37x = 28,990,319,950.45
  5. Step 5: Solve for x
    x = 28,990,319,950.45/221,986.37
  6. Step 6: Final answer
    x = 130,595.04

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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.