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Finding the Fourth Proportional to 192,339.30, 265,422.15 and 135,061.86

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Solution

The fourth proportional to 192,339.30, 265,422.15 and 135,061.86 is: 186,381.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,339.30 : 265,422.15 = 135,061.86 : x
  2. Step 2: Convert to fraction form
    192,339.30/265,422.15 = 135,061.86/x
  3. Step 3: Cross multiply
    192,339.30x = 265,422.15 × 135,061.86
  4. Step 4: Simplify right side
    192,339.30x = 35,848,409,264.20
  5. Step 5: Solve for x
    x = 35,848,409,264.20/192,339.30
  6. Step 6: Final answer
    x = 186,381.09

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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.