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Finding the Fourth Proportional to 73,311.02, 109,904.96 and 51,058.70

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Solution

The fourth proportional to 73,311.02, 109,904.96 and 51,058.70 is: 76,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,311.02 : 109,904.96 = 51,058.70 : x
  2. Step 2: Convert to fraction form
    73,311.02/109,904.96 = 51,058.70/x
  3. Step 3: Cross multiply
    73,311.02x = 109,904.96 × 51,058.70
  4. Step 4: Simplify right side
    73,311.02x = 5,611,604,381.15
  5. Step 5: Solve for x
    x = 5,611,604,381.15/73,311.02
  6. Step 6: Final answer
    x = 76,545.17

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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.