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Finding the Fourth Proportional to 80,653, 111,301.14 and 45,325

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Solution

The fourth proportional to 80,653, 111,301.14 and 45,325 is: 62,548.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,653 : 111,301.14 = 45,325 : x
  2. Step 2: Convert to fraction form
    80,653/111,301.14 = 45,325/x
  3. Step 3: Cross multiply
    80,653x = 111,301.14 × 45,325
  4. Step 4: Simplify right side
    80,653x = 5,044,724,170.50
  5. Step 5: Solve for x
    x = 5,044,724,170.50/80,653
  6. Step 6: Final answer
    x = 62,548.50

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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.