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Finding the Fourth Proportional to 60,796, 91,119.12 and 43,170.40

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Solution

The fourth proportional to 60,796, 91,119.12 and 43,170.40 is: 64,702.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,796 : 91,119.12 = 43,170.40 : x
  2. Step 2: Convert to fraction form
    60,796/91,119.12 = 43,170.40/x
  3. Step 3: Cross multiply
    60,796x = 91,119.12 × 43,170.40
  4. Step 4: Simplify right side
    60,796x = 3,933,648,858.05
  5. Step 5: Solve for x
    x = 3,933,648,858.05/60,796
  6. Step 6: Final answer
    x = 64,702.43

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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.