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Finding the Fourth Proportional to 244,490.30, 366,844.80 and 86,831.90

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Solution

The fourth proportional to 244,490.30, 366,844.80 and 86,831.90 is: 130,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,490.30 : 366,844.80 = 86,831.90 : x
  2. Step 2: Convert to fraction form
    244,490.30/366,844.80 = 86,831.90/x
  3. Step 3: Cross multiply
    244,490.30x = 366,844.80 × 86,831.90
  4. Step 4: Simplify right side
    244,490.30x = 31,853,830,989.12
  5. Step 5: Solve for x
    x = 31,853,830,989.12/244,490.30
  6. Step 6: Final answer
    x = 130,286.69

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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.