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Finding the Fourth Proportional to 68,361.03, 94,311.93 and 42,822.96

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Solution

The fourth proportional to 68,361.03, 94,311.93 and 42,822.96 is: 59,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,361.03 : 94,311.93 = 42,822.96 : x
  2. Step 2: Convert to fraction form
    68,361.03/94,311.93 = 42,822.96/x
  3. Step 3: Cross multiply
    68,361.03x = 94,311.93 × 42,822.96
  4. Step 4: Simplify right side
    68,361.03x = 4,038,716,005.91
  5. Step 5: Solve for x
    x = 4,038,716,005.91/68,361.03
  6. Step 6: Final answer
    x = 59,079.22

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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.