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Finding the Fourth Proportional to 235,853.56, 325,796.34 and 188,439.40

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Solution

The fourth proportional to 235,853.56, 325,796.34 and 188,439.40 is: 260,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,853.56 : 325,796.34 = 188,439.40 : x
  2. Step 2: Convert to fraction form
    235,853.56/325,796.34 = 188,439.40/x
  3. Step 3: Cross multiply
    235,853.56x = 325,796.34 × 188,439.40
  4. Step 4: Simplify right side
    235,853.56x = 61,392,866,831.80
  5. Step 5: Solve for x
    x = 61,392,866,831.80/235,853.56
  6. Step 6: Final answer
    x = 260,300.79

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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.