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Finding the Fourth Proportional to 101,507.22, 152,085.60 and 67,291.92

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Solution

The fourth proportional to 101,507.22, 152,085.60 and 67,291.92 is: 100,821.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,507.22 : 152,085.60 = 67,291.92 : x
  2. Step 2: Convert to fraction form
    101,507.22/152,085.60 = 67,291.92/x
  3. Step 3: Cross multiply
    101,507.22x = 152,085.60 × 67,291.92
  4. Step 4: Simplify right side
    101,507.22x = 10,234,132,028.35
  5. Step 5: Solve for x
    x = 10,234,132,028.35/101,507.22
  6. Step 6: Final answer
    x = 100,821.72

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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.