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Finding the Fourth Proportional to 65,958.60, 91,064.13 and 50,822.55

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Solution

The fourth proportional to 65,958.60, 91,064.13 and 50,822.55 is: 70,166.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,958.60 : 91,064.13 = 50,822.55 : x
  2. Step 2: Convert to fraction form
    65,958.60/91,064.13 = 50,822.55/x
  3. Step 3: Cross multiply
    65,958.60x = 91,064.13 × 50,822.55
  4. Step 4: Simplify right side
    65,958.60x = 4,628,111,300.13
  5. Step 5: Solve for x
    x = 4,628,111,300.13/65,958.60
  6. Step 6: Final answer
    x = 70,166.91

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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.