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Finding the Fourth Proportional to 234,977.57, 352,480.05 and 66,483.80

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Solution

The fourth proportional to 234,977.57, 352,480.05 and 66,483.80 is: 99,729.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,977.57 : 352,480.05 = 66,483.80 : x
  2. Step 2: Convert to fraction form
    234,977.57/352,480.05 = 66,483.80/x
  3. Step 3: Cross multiply
    234,977.57x = 352,480.05 × 66,483.80
  4. Step 4: Simplify right side
    234,977.57x = 23,434,211,385.79
  5. Step 5: Solve for x
    x = 23,434,211,385.79/234,977.57
  6. Step 6: Final answer
    x = 99,729.57

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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.