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Finding the Fourth Proportional to 74,707, 103,102.14 and 41,179.48

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Solution

The fourth proportional to 74,707, 103,102.14 and 41,179.48 is: 56,831.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,707 : 103,102.14 = 41,179.48 : x
  2. Step 2: Convert to fraction form
    74,707/103,102.14 = 41,179.48/x
  3. Step 3: Cross multiply
    74,707x = 103,102.14 × 41,179.48
  4. Step 4: Simplify right side
    74,707x = 4,245,692,512.09
  5. Step 5: Solve for x
    x = 4,245,692,512.09/74,707
  6. Step 6: Final answer
    x = 56,831.25

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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.