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Finding the Fourth Proportional to 111,088.69, 166,650.32 and 36,191.40

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Solution

The fourth proportional to 111,088.69, 166,650.32 and 36,191.40 is: 54,292.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,088.69 : 166,650.32 = 36,191.40 : x
  2. Step 2: Convert to fraction form
    111,088.69/166,650.32 = 36,191.40/x
  3. Step 3: Cross multiply
    111,088.69x = 166,650.32 × 36,191.40
  4. Step 4: Simplify right side
    111,088.69x = 6,031,308,807.87
  5. Step 5: Solve for x
    x = 6,031,308,807.87/111,088.69
  6. Step 6: Final answer
    x = 54,292.73

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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.