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Finding the Fourth Proportional to 193,275, 266,628.72 and 136,717.56

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Solution

The fourth proportional to 193,275, 266,628.72 and 136,717.56 is: 188,606.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,275 : 266,628.72 = 136,717.56 : x
  2. Step 2: Convert to fraction form
    193,275/266,628.72 = 136,717.56/x
  3. Step 3: Cross multiply
    193,275x = 266,628.72 × 136,717.56
  4. Step 4: Simplify right side
    193,275x = 36,452,828,024.32
  5. Step 5: Solve for x
    x = 36,452,828,024.32/193,275
  6. Step 6: Final answer
    x = 188,606.02

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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.