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Finding the Fourth Proportional to 67,955.67, 101,847.38 and 38,390.16

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Solution

The fourth proportional to 67,955.67, 101,847.38 and 38,390.16 is: 57,536.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,955.67 : 101,847.38 = 38,390.16 : x
  2. Step 2: Convert to fraction form
    67,955.67/101,847.38 = 38,390.16/x
  3. Step 3: Cross multiply
    67,955.67x = 101,847.38 × 38,390.16
  4. Step 4: Simplify right side
    67,955.67x = 3,909,937,213.78
  5. Step 5: Solve for x
    x = 3,909,937,213.78/67,955.67
  6. Step 6: Final answer
    x = 57,536.59

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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.