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Finding the Fourth Proportional to 68,808.93, 94,991.91 and 53,461.17

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Solution

The fourth proportional to 68,808.93, 94,991.91 and 53,461.17 is: 73,804.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,808.93 : 94,991.91 = 53,461.17 : x
  2. Step 2: Convert to fraction form
    68,808.93/94,991.91 = 53,461.17/x
  3. Step 3: Cross multiply
    68,808.93x = 94,991.91 × 53,461.17
  4. Step 4: Simplify right side
    68,808.93x = 5,078,378,649.13
  5. Step 5: Solve for x
    x = 5,078,378,649.13/68,808.93
  6. Step 6: Final answer
    x = 73,804.06

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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.