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Finding the Fourth Proportional to 70,963.02, 106,324.04 and 42,823.95

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Solution

The fourth proportional to 70,963.02, 106,324.04 and 42,823.95 is: 64,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,963.02 : 106,324.04 = 42,823.95 : x
  2. Step 2: Convert to fraction form
    70,963.02/106,324.04 = 42,823.95/x
  3. Step 3: Cross multiply
    70,963.02x = 106,324.04 × 42,823.95
  4. Step 4: Simplify right side
    70,963.02x = 4,553,215,139.25
  5. Step 5: Solve for x
    x = 4,553,215,139.25/70,963.02
  6. Step 6: Final answer
    x = 64,163.21

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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.