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Finding the Fourth Proportional to 192,642.30, 265,730.13 and 127,231.53

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Solution

The fourth proportional to 192,642.30, 265,730.13 and 127,231.53 is: 175,502.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,642.30 : 265,730.13 = 127,231.53 : x
  2. Step 2: Convert to fraction form
    192,642.30/265,730.13 = 127,231.53/x
  3. Step 3: Cross multiply
    192,642.30x = 265,730.13 × 127,231.53
  4. Step 4: Simplify right side
    192,642.30x = 33,809,251,007.00
  5. Step 5: Solve for x
    x = 33,809,251,007.00/192,642.30
  6. Step 6: Final answer
    x = 175,502.74

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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.