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Finding the Fourth Proportional to 185,865.86, 278,891.42 and 73,626.98

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Solution

The fourth proportional to 185,865.86, 278,891.42 and 73,626.98 is: 110,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,865.86 : 278,891.42 = 73,626.98 : x
  2. Step 2: Convert to fraction form
    185,865.86/278,891.42 = 73,626.98/x
  3. Step 3: Cross multiply
    185,865.86x = 278,891.42 × 73,626.98
  4. Step 4: Simplify right side
    185,865.86x = 20,533,933,002.51
  5. Step 5: Solve for x
    x = 20,533,933,002.51/185,865.86
  6. Step 6: Final answer
    x = 110,477.16

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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.