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Finding the Fourth Proportional to 105,963.16, 158,845.90 and 35,793.40

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Solution

The fourth proportional to 105,963.16, 158,845.90 and 35,793.40 is: 53,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,963.16 : 158,845.90 = 35,793.40 : x
  2. Step 2: Convert to fraction form
    105,963.16/158,845.90 = 35,793.40/x
  3. Step 3: Cross multiply
    105,963.16x = 158,845.90 × 35,793.40
  4. Step 4: Simplify right side
    105,963.16x = 5,685,634,837.06
  5. Step 5: Solve for x
    x = 5,685,634,837.06/105,963.16
  6. Step 6: Final answer
    x = 53,656.71

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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.