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Finding the Fourth Proportional to 97,361.12, 134,364.62 and 54,918.74

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Solution

The fourth proportional to 97,361.12, 134,364.62 and 54,918.74 is: 75,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,361.12 : 134,364.62 = 54,918.74 : x
  2. Step 2: Convert to fraction form
    97,361.12/134,364.62 = 54,918.74/x
  3. Step 3: Cross multiply
    97,361.12x = 134,364.62 × 54,918.74
  4. Step 4: Simplify right side
    97,361.12x = 7,379,135,630.98
  5. Step 5: Solve for x
    x = 7,379,135,630.98/97,361.12
  6. Step 6: Final answer
    x = 75,791.40

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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.