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Finding the Fourth Proportional to 235,247.88, 352,875.42 and 129,837.72

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Solution

The fourth proportional to 235,247.88, 352,875.42 and 129,837.72 is: 194,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,247.88 : 352,875.42 = 129,837.72 : x
  2. Step 2: Convert to fraction form
    235,247.88/352,875.42 = 129,837.72/x
  3. Step 3: Cross multiply
    235,247.88x = 352,875.42 × 129,837.72
  4. Step 4: Simplify right side
    235,247.88x = 45,816,539,976.84
  5. Step 5: Solve for x
    x = 45,816,539,976.84/235,247.88
  6. Step 6: Final answer
    x = 194,758.57

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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.