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Finding the Fourth Proportional to 227,085.48, 313,378.26 and 123,719.17

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Solution

The fourth proportional to 227,085.48, 313,378.26 and 123,719.17 is: 170,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,085.48 : 313,378.26 = 123,719.17 : x
  2. Step 2: Convert to fraction form
    227,085.48/313,378.26 = 123,719.17/x
  3. Step 3: Cross multiply
    227,085.48x = 313,378.26 × 123,719.17
  4. Step 4: Simplify right side
    227,085.48x = 38,770,898,223.24
  5. Step 5: Solve for x
    x = 38,770,898,223.24/227,085.48
  6. Step 6: Final answer
    x = 170,732.62

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1.5x scale

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.