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Finding the Fourth Proportional to 140,951.48, 194,512.46 and 77,293.32

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Solution

The fourth proportional to 140,951.48, 194,512.46 and 77,293.32 is: 106,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,951.48 : 194,512.46 = 77,293.32 : x
  2. Step 2: Convert to fraction form
    140,951.48/194,512.46 = 77,293.32/x
  3. Step 3: Cross multiply
    140,951.48x = 194,512.46 × 77,293.32
  4. Step 4: Simplify right side
    140,951.48x = 15,034,513,814.77
  5. Step 5: Solve for x
    x = 15,034,513,814.77/140,951.48
  6. Step 6: Final answer
    x = 106,664.46

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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.