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Finding the Fourth Proportional to 72,831.69, 109,247.54 and 26,117.37

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Solution

The fourth proportional to 72,831.69, 109,247.54 and 26,117.37 is: 39,176.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,831.69 : 109,247.54 = 26,117.37 : x
  2. Step 2: Convert to fraction form
    72,831.69/109,247.54 = 26,117.37/x
  3. Step 3: Cross multiply
    72,831.69x = 109,247.54 × 26,117.37
  4. Step 4: Simplify right side
    72,831.69x = 2,853,258,293.18
  5. Step 5: Solve for x
    x = 2,853,258,293.18/72,831.69
  6. Step 6: Final answer
    x = 39,176.06

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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.