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Finding the Fourth Proportional to 73,536.40, 110,304.60 and 61,872.40

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Solution

The fourth proportional to 73,536.40, 110,304.60 and 61,872.40 is: 92,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,536.40 : 110,304.60 = 61,872.40 : x
  2. Step 2: Convert to fraction form
    73,536.40/110,304.60 = 61,872.40/x
  3. Step 3: Cross multiply
    73,536.40x = 110,304.60 × 61,872.40
  4. Step 4: Simplify right side
    73,536.40x = 6,824,810,333.04
  5. Step 5: Solve for x
    x = 6,824,810,333.04/73,536.40
  6. Step 6: Final answer
    x = 92,808.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.