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Finding the Fourth Proportional to 86,898.82, 119,909.83 and 48,655.37

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Solution

The fourth proportional to 86,898.82, 119,909.83 and 48,655.37 is: 67,138.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,898.82 : 119,909.83 = 48,655.37 : x
  2. Step 2: Convert to fraction form
    86,898.82/119,909.83 = 48,655.37/x
  3. Step 3: Cross multiply
    86,898.82x = 119,909.83 × 48,655.37
  4. Step 4: Simplify right side
    86,898.82x = 5,834,257,145.29
  5. Step 5: Solve for x
    x = 5,834,257,145.29/86,898.82
  6. Step 6: Final answer
    x = 67,138.51

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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.