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Finding the Fourth Proportional to 92,272.88, 127,336.56 and 49,831.40

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Solution

The fourth proportional to 92,272.88, 127,336.56 and 49,831.40 is: 68,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,272.88 : 127,336.56 = 49,831.40 : x
  2. Step 2: Convert to fraction form
    92,272.88/127,336.56 = 49,831.40/x
  3. Step 3: Cross multiply
    92,272.88x = 127,336.56 × 49,831.40
  4. Step 4: Simplify right side
    92,272.88x = 6,345,359,055.98
  5. Step 5: Solve for x
    x = 6,345,359,055.98/92,272.88
  6. Step 6: Final answer
    x = 68,767.33

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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.