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Finding the Fourth Proportional to 203,079.94, 304,612.35 and 53,318.86

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Solution

The fourth proportional to 203,079.94, 304,612.35 and 53,318.86 is: 79,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,079.94 : 304,612.35 = 53,318.86 : x
  2. Step 2: Convert to fraction form
    203,079.94/304,612.35 = 53,318.86/x
  3. Step 3: Cross multiply
    203,079.94x = 304,612.35 × 53,318.86
  4. Step 4: Simplify right side
    203,079.94x = 16,241,583,243.92
  5. Step 5: Solve for x
    x = 16,241,583,243.92/203,079.94
  6. Step 6: Final answer
    x = 79,976.31

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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.