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Finding the Fourth Proportional to 68,431.76, 94,384.68 and 46,071.44

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Solution

The fourth proportional to 68,431.76, 94,384.68 and 46,071.44 is: 63,544.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,431.76 : 94,384.68 = 46,071.44 : x
  2. Step 2: Convert to fraction form
    68,431.76/94,384.68 = 46,071.44/x
  3. Step 3: Cross multiply
    68,431.76x = 94,384.68 × 46,071.44
  4. Step 4: Simplify right side
    68,431.76x = 4,348,438,121.54
  5. Step 5: Solve for x
    x = 4,348,438,121.54/68,431.76
  6. Step 6: Final answer
    x = 63,544.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.