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Finding the Fourth Proportional to 186,247.76, 256,877.76 and 125,722.56

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Solution

The fourth proportional to 186,247.76, 256,877.76 and 125,722.56 is: 173,399.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,247.76 : 256,877.76 = 125,722.56 : x
  2. Step 2: Convert to fraction form
    186,247.76/256,877.76 = 125,722.56/x
  3. Step 3: Cross multiply
    186,247.76x = 256,877.76 × 125,722.56
  4. Step 4: Simplify right side
    186,247.76x = 32,295,329,594.27
  5. Step 5: Solve for x
    x = 32,295,329,594.27/186,247.76
  6. Step 6: Final answer
    x = 173,399.83

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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.