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Finding the Fourth Proportional to 236,601.94, 354,959.40 and 78,831.76

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Solution

The fourth proportional to 236,601.94, 354,959.40 and 78,831.76 is: 118,266.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,601.94 : 354,959.40 = 78,831.76 : x
  2. Step 2: Convert to fraction form
    236,601.94/354,959.40 = 78,831.76/x
  3. Step 3: Cross multiply
    236,601.94x = 354,959.40 × 78,831.76
  4. Step 4: Simplify right side
    236,601.94x = 27,982,074,230.54
  5. Step 5: Solve for x
    x = 27,982,074,230.54/236,601.94
  6. Step 6: Final answer
    x = 118,266.46

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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.