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Finding the Fourth Proportional to 71,718.86, 99,016.26 and 46,234.28

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Solution

The fourth proportional to 71,718.86, 99,016.26 and 46,234.28 is: 63,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,718.86 : 99,016.26 = 46,234.28 : x
  2. Step 2: Convert to fraction form
    71,718.86/99,016.26 = 46,234.28/x
  3. Step 3: Cross multiply
    71,718.86x = 99,016.26 × 46,234.28
  4. Step 4: Simplify right side
    71,718.86x = 4,577,945,489.39
  5. Step 5: Solve for x
    x = 4,577,945,489.39/71,718.86
  6. Step 6: Final answer
    x = 63,831.82

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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.