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Finding the Fourth Proportional to 101,700.91, 140,330.03 and 67,760.02

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Solution

The fourth proportional to 101,700.91, 140,330.03 and 67,760.02 is: 93,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,700.91 : 140,330.03 = 67,760.02 : x
  2. Step 2: Convert to fraction form
    101,700.91/140,330.03 = 67,760.02/x
  3. Step 3: Cross multiply
    101,700.91x = 140,330.03 × 67,760.02
  4. Step 4: Simplify right side
    101,700.91x = 9,508,765,639.40
  5. Step 5: Solve for x
    x = 9,508,765,639.40/101,700.91
  6. Step 6: Final answer
    x = 93,497.35

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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.