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Finding the Fourth Proportional to 186,364.52, 279,688.40 and 136,574.63

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Solution

The fourth proportional to 186,364.52, 279,688.40 and 136,574.63 is: 204,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,364.52 : 279,688.40 = 136,574.63 : x
  2. Step 2: Convert to fraction form
    186,364.52/279,688.40 = 136,574.63/x
  3. Step 3: Cross multiply
    186,364.52x = 279,688.40 × 136,574.63
  4. Step 4: Simplify right side
    186,364.52x = 38,198,339,745.29
  5. Step 5: Solve for x
    x = 38,198,339,745.29/186,364.52
  6. Step 6: Final answer
    x = 204,965.73

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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.