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Finding the Fourth Proportional to 70,963.65, 106,466.02 and 21,044.95

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Solution

The fourth proportional to 70,963.65, 106,466.02 and 21,044.95 is: 31,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,963.65 : 106,466.02 = 21,044.95 : x
  2. Step 2: Convert to fraction form
    70,963.65/106,466.02 = 21,044.95/x
  3. Step 3: Cross multiply
    70,963.65x = 106,466.02 × 21,044.95
  4. Step 4: Simplify right side
    70,963.65x = 2,240,571,539.04
  5. Step 5: Solve for x
    x = 2,240,571,539.04/70,963.65
  6. Step 6: Final answer
    x = 31,573.51

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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.