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Finding the Fourth Proportional to 181,605.66, 250,619.31 and 106,197.90

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Solution

The fourth proportional to 181,605.66, 250,619.31 and 106,197.90 is: 146,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,605.66 : 250,619.31 = 106,197.90 : x
  2. Step 2: Convert to fraction form
    181,605.66/250,619.31 = 106,197.90/x
  3. Step 3: Cross multiply
    181,605.66x = 250,619.31 × 106,197.90
  4. Step 4: Simplify right side
    181,605.66x = 26,615,244,421.45
  5. Step 5: Solve for x
    x = 26,615,244,421.45/181,605.66
  6. Step 6: Final answer
    x = 146,555.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.