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Finding the Fourth Proportional to 234,931.47, 352,418.48 and 66,453.50

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Solution

The fourth proportional to 234,931.47, 352,418.48 and 66,453.50 is: 99,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,931.47 : 352,418.48 = 66,453.50 : x
  2. Step 2: Convert to fraction form
    234,931.47/352,418.48 = 66,453.50/x
  3. Step 3: Cross multiply
    234,931.47x = 352,418.48 × 66,453.50
  4. Step 4: Simplify right side
    234,931.47x = 23,419,439,366.32
  5. Step 5: Solve for x
    x = 23,419,439,366.32/234,931.47
  6. Step 6: Final answer
    x = 99,686.26

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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.