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Finding the Fourth Proportional to 70,167.54, 96,831.09 and 38,336.43

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Solution

The fourth proportional to 70,167.54, 96,831.09 and 38,336.43 is: 52,904.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,167.54 : 96,831.09 = 38,336.43 : x
  2. Step 2: Convert to fraction form
    70,167.54/96,831.09 = 38,336.43/x
  3. Step 3: Cross multiply
    70,167.54x = 96,831.09 × 38,336.43
  4. Step 4: Simplify right side
    70,167.54x = 3,712,158,303.61
  5. Step 5: Solve for x
    x = 3,712,158,303.61/70,167.54
  6. Step 6: Final answer
    x = 52,904.21

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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.