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Finding the Fourth Proportional to 245,763.27, 339,208.63 and 160,831.13

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Solution

The fourth proportional to 245,763.27, 339,208.63 and 160,831.13 is: 221,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,763.27 : 339,208.63 = 160,831.13 : x
  2. Step 2: Convert to fraction form
    245,763.27/339,208.63 = 160,831.13/x
  3. Step 3: Cross multiply
    245,763.27x = 339,208.63 × 160,831.13
  4. Step 4: Simplify right side
    245,763.27x = 54,555,305,170.53
  5. Step 5: Solve for x
    x = 54,555,305,170.53/245,763.27
  6. Step 6: Final answer
    x = 221,983.15

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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.