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Finding the Fourth Proportional to 111,073.72, 166,265.07 and 60,345.90

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Solution

The fourth proportional to 111,073.72, 166,265.07 and 60,345.90 is: 90,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,073.72 : 166,265.07 = 60,345.90 : x
  2. Step 2: Convert to fraction form
    111,073.72/166,265.07 = 60,345.90/x
  3. Step 3: Cross multiply
    111,073.72x = 166,265.07 × 60,345.90
  4. Step 4: Simplify right side
    111,073.72x = 10,033,415,287.71
  5. Step 5: Solve for x
    x = 10,033,415,287.71/111,073.72
  6. Step 6: Final answer
    x = 90,331.14

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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.