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Finding the Fourth Proportional to 67,929.76, 101,762.10 and 44,485.12

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Solution

The fourth proportional to 67,929.76, 101,762.10 and 44,485.12 is: 66,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,929.76 : 101,762.10 = 44,485.12 : x
  2. Step 2: Convert to fraction form
    67,929.76/101,762.10 = 44,485.12/x
  3. Step 3: Cross multiply
    67,929.76x = 101,762.10 × 44,485.12
  4. Step 4: Simplify right side
    67,929.76x = 4,526,899,229.95
  5. Step 5: Solve for x
    x = 4,526,899,229.95/67,929.76
  6. Step 6: Final answer
    x = 66,640.88

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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.