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Finding the Fourth Proportional to 189,744.66, 261,875.43 and 114,291.54

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Solution

The fourth proportional to 189,744.66, 261,875.43 and 114,291.54 is: 157,739.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,744.66 : 261,875.43 = 114,291.54 : x
  2. Step 2: Convert to fraction form
    189,744.66/261,875.43 = 114,291.54/x
  3. Step 3: Cross multiply
    189,744.66x = 261,875.43 × 114,291.54
  4. Step 4: Simplify right side
    189,744.66x = 29,930,146,182.86
  5. Step 5: Solve for x
    x = 29,930,146,182.86/189,744.66
  6. Step 6: Final answer
    x = 157,739.07

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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.