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Finding the Fourth Proportional to 234,866.10, 352,322.22 and 66,387.72

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Solution

The fourth proportional to 234,866.10, 352,322.22 and 66,387.72 is: 99,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,866.10 : 352,322.22 = 66,387.72 : x
  2. Step 2: Convert to fraction form
    234,866.10/352,322.22 = 66,387.72/x
  3. Step 3: Cross multiply
    234,866.10x = 352,322.22 × 66,387.72
  4. Step 4: Simplify right side
    234,866.10x = 23,389,868,891.14
  5. Step 5: Solve for x
    x = 23,389,868,891.14/234,866.10
  6. Step 6: Final answer
    x = 99,588.10

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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.