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Finding the Fourth Proportional to 48,497.48, 72,668.46 and 43,831.88

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Solution

The fourth proportional to 48,497.48, 72,668.46 and 43,831.88 is: 65,677.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,497.48 : 72,668.46 = 43,831.88 : x
  2. Step 2: Convert to fraction form
    48,497.48/72,668.46 = 43,831.88/x
  3. Step 3: Cross multiply
    48,497.48x = 72,668.46 × 43,831.88
  4. Step 4: Simplify right side
    48,497.48x = 3,185,195,218.50
  5. Step 5: Solve for x
    x = 3,185,195,218.50/48,497.48
  6. Step 6: Final answer
    x = 65,677.54

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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.