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Finding the Fourth Proportional to 68,112.82, 94,008.71 and 45,102.06

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Solution

The fourth proportional to 68,112.82, 94,008.71 and 45,102.06 is: 62,249.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,112.82 : 94,008.71 = 45,102.06 : x
  2. Step 2: Convert to fraction form
    68,112.82/94,008.71 = 45,102.06/x
  3. Step 3: Cross multiply
    68,112.82x = 94,008.71 × 45,102.06
  4. Step 4: Simplify right side
    68,112.82x = 4,239,985,941.40
  5. Step 5: Solve for x
    x = 4,239,985,941.40/68,112.82
  6. Step 6: Final answer
    x = 62,249.46

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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.