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Finding the Fourth Proportional to 234,820.80, 352,425.60 and 108,655.20

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Solution

The fourth proportional to 234,820.80, 352,425.60 and 108,655.20 is: 163,072.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,820.80 : 352,425.60 = 108,655.20 : x
  2. Step 2: Convert to fraction form
    234,820.80/352,425.60 = 108,655.20/x
  3. Step 3: Cross multiply
    234,820.80x = 352,425.60 × 108,655.20
  4. Step 4: Simplify right side
    234,820.80x = 38,292,874,053.12
  5. Step 5: Solve for x
    x = 38,292,874,053.12/234,820.80
  6. Step 6: Final answer
    x = 163,072.75

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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.