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Finding the Fourth Proportional to 185,399.56, 278,008.62 and 67,053.16

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Solution

The fourth proportional to 185,399.56, 278,008.62 and 67,053.16 is: 100,546.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,399.56 : 278,008.62 = 67,053.16 : x
  2. Step 2: Convert to fraction form
    185,399.56/278,008.62 = 67,053.16/x
  3. Step 3: Cross multiply
    185,399.56x = 278,008.62 × 67,053.16
  4. Step 4: Simplify right side
    185,399.56x = 18,641,356,478.24
  5. Step 5: Solve for x
    x = 18,641,356,478.24/185,399.56
  6. Step 6: Final answer
    x = 100,546.93

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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.