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Finding the Fourth Proportional to 86,788.84, 119,765.86 and 49,060.84

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Solution

The fourth proportional to 86,788.84, 119,765.86 and 49,060.84 is: 67,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,788.84 : 119,765.86 = 49,060.84 : x
  2. Step 2: Convert to fraction form
    86,788.84/119,765.86 = 49,060.84/x
  3. Step 3: Cross multiply
    86,788.84x = 119,765.86 × 49,060.84
  4. Step 4: Simplify right side
    86,788.84x = 5,875,813,694.92
  5. Step 5: Solve for x
    x = 5,875,813,694.92/86,788.84
  6. Step 6: Final answer
    x = 67,702.41

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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.