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Finding the Fourth Proportional to 68,393.64, 102,622.86 and 47,366.04

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Solution

The fourth proportional to 68,393.64, 102,622.86 and 47,366.04 is: 71,071.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,393.64 : 102,622.86 = 47,366.04 : x
  2. Step 2: Convert to fraction form
    68,393.64/102,622.86 = 47,366.04/x
  3. Step 3: Cross multiply
    68,393.64x = 102,622.86 × 47,366.04
  4. Step 4: Simplify right side
    68,393.64x = 4,860,838,491.67
  5. Step 5: Solve for x
    x = 4,860,838,491.67/68,393.64
  6. Step 6: Final answer
    x = 71,071.50

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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.