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Finding the Fourth Proportional to 244,512.76, 366,729.80 and 66,978.28

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Solution

The fourth proportional to 244,512.76, 366,729.80 and 66,978.28 is: 100,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,512.76 : 366,729.80 = 66,978.28 : x
  2. Step 2: Convert to fraction form
    244,512.76/366,729.80 = 66,978.28/x
  3. Step 3: Cross multiply
    244,512.76x = 366,729.80 × 66,978.28
  4. Step 4: Simplify right side
    244,512.76x = 24,562,931,228.74
  5. Step 5: Solve for x
    x = 24,562,931,228.74/244,512.76
  6. Step 6: Final answer
    x = 100,456.64

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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.