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Finding the Fourth Proportional to 86,830.73, 119,831.46 and 48,589.96

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Solution

The fourth proportional to 86,830.73, 119,831.46 and 48,589.96 is: 67,056.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,830.73 : 119,831.46 = 48,589.96 : x
  2. Step 2: Convert to fraction form
    86,830.73/119,831.46 = 48,589.96/x
  3. Step 3: Cross multiply
    86,830.73x = 119,831.46 × 48,589.96
  4. Step 4: Simplify right side
    86,830.73x = 5,822,605,679.91
  5. Step 5: Solve for x
    x = 5,822,605,679.91/86,830.73
  6. Step 6: Final answer
    x = 67,056.97

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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.