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Finding the Fourth Proportional to 70,901.88, 106,252.56 and 39,325.85

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Solution

The fourth proportional to 70,901.88, 106,252.56 and 39,325.85 is: 58,933.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.88 : 106,252.56 = 39,325.85 : x
  2. Step 2: Convert to fraction form
    70,901.88/106,252.56 = 39,325.85/x
  3. Step 3: Cross multiply
    70,901.88x = 106,252.56 × 39,325.85
  4. Step 4: Simplify right side
    70,901.88x = 4,178,472,502.31
  5. Step 5: Solve for x
    x = 4,178,472,502.31/70,901.88
  6. Step 6: Final answer
    x = 58,933.17

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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.