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Finding the Fourth Proportional to 67,242, 92,762.82 and 43,376.37

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Solution

The fourth proportional to 67,242, 92,762.82 and 43,376.37 is: 59,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,242 : 92,762.82 = 43,376.37 : x
  2. Step 2: Convert to fraction form
    67,242/92,762.82 = 43,376.37/x
  3. Step 3: Cross multiply
    67,242x = 92,762.82 × 43,376.37
  4. Step 4: Simplify right side
    67,242x = 4,023,714,402.56
  5. Step 5: Solve for x
    x = 4,023,714,402.56/67,242
  6. Step 6: Final answer
    x = 59,839.30

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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.