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Finding the Fourth Proportional to 110,919.40, 166,379.10 and 37,047.40

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Solution

The fourth proportional to 110,919.40, 166,379.10 and 37,047.40 is: 55,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,919.40 : 166,379.10 = 37,047.40 : x
  2. Step 2: Convert to fraction form
    110,919.40/166,379.10 = 37,047.40/x
  3. Step 3: Cross multiply
    110,919.40x = 166,379.10 × 37,047.40
  4. Step 4: Simplify right side
    110,919.40x = 6,163,913,069.34
  5. Step 5: Solve for x
    x = 6,163,913,069.34/110,919.40
  6. Step 6: Final answer
    x = 55,571.10

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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.