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Finding the Fourth Proportional to 67,311.84, 92,835.81 and 59,228.04

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Solution

The fourth proportional to 67,311.84, 92,835.81 and 59,228.04 is: 81,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,311.84 : 92,835.81 = 59,228.04 : x
  2. Step 2: Convert to fraction form
    67,311.84/92,835.81 = 59,228.04/x
  3. Step 3: Cross multiply
    67,311.84x = 92,835.81 × 59,228.04
  4. Step 4: Simplify right side
    67,311.84x = 5,498,483,068.11
  5. Step 5: Solve for x
    x = 5,498,483,068.11/67,311.84
  6. Step 6: Final answer
    x = 81,686.71

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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.