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Finding the Fourth Proportional to 68,229.84, 102,440.40 and 34,973.76

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Solution

The fourth proportional to 68,229.84, 102,440.40 and 34,973.76 is: 52,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,229.84 : 102,440.40 = 34,973.76 : x
  2. Step 2: Convert to fraction form
    68,229.84/102,440.40 = 34,973.76/x
  3. Step 3: Cross multiply
    68,229.84x = 102,440.40 × 34,973.76
  4. Step 4: Simplify right side
    68,229.84x = 3,582,725,963.90
  5. Step 5: Solve for x
    x = 3,582,725,963.90/68,229.84
  6. Step 6: Final answer
    x = 52,509.66

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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.