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Finding the Fourth Proportional to 70,901.53, 106,252.05 and 39,325.50

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Solution

The fourth proportional to 70,901.53, 106,252.05 and 39,325.50 is: 58,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.53 : 106,252.05 = 39,325.50 : x
  2. Step 2: Convert to fraction form
    70,901.53/106,252.05 = 39,325.50/x
  3. Step 3: Cross multiply
    70,901.53x = 106,252.05 × 39,325.50
  4. Step 4: Simplify right side
    70,901.53x = 4,178,414,992.28
  5. Step 5: Solve for x
    x = 4,178,414,992.28/70,901.53
  6. Step 6: Final answer
    x = 58,932.65

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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.