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Finding the Fourth Proportional to 67,064.51, 100,503.21 and 50,405.03

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Solution

The fourth proportional to 67,064.51, 100,503.21 and 50,405.03 is: 75,537.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,064.51 : 100,503.21 = 50,405.03 : x
  2. Step 2: Convert to fraction form
    67,064.51/100,503.21 = 50,405.03/x
  3. Step 3: Cross multiply
    67,064.51x = 100,503.21 × 50,405.03
  4. Step 4: Simplify right side
    67,064.51x = 5,065,867,518.57
  5. Step 5: Solve for x
    x = 5,065,867,518.57/67,064.51
  6. Step 6: Final answer
    x = 75,537.24

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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.