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Finding the Fourth Proportional to 159,267.27, 219,784.04 and 87,647.19

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Solution

The fourth proportional to 159,267.27, 219,784.04 and 87,647.19 is: 120,950.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,267.27 : 219,784.04 = 87,647.19 : x
  2. Step 2: Convert to fraction form
    159,267.27/219,784.04 = 87,647.19/x
  3. Step 3: Cross multiply
    159,267.27x = 219,784.04 × 87,647.19
  4. Step 4: Simplify right side
    159,267.27x = 19,263,453,074.61
  5. Step 5: Solve for x
    x = 19,263,453,074.61/159,267.27
  6. Step 6: Final answer
    x = 120,950.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.