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Finding the Fourth Proportional to 68,104.99, 93,997.83 and 42,623.20

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Solution

The fourth proportional to 68,104.99, 93,997.83 and 42,623.20 is: 58,828.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,104.99 : 93,997.83 = 42,623.20 : x
  2. Step 2: Convert to fraction form
    68,104.99/93,997.83 = 42,623.20/x
  3. Step 3: Cross multiply
    68,104.99x = 93,997.83 × 42,623.20
  4. Step 4: Simplify right side
    68,104.99x = 4,006,488,307.66
  5. Step 5: Solve for x
    x = 4,006,488,307.66/68,104.99
  6. Step 6: Final answer
    x = 58,828.12

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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.