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Finding the Fourth Proportional to 234,080.10, 351,120.15 and 84,392.10

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Solution

The fourth proportional to 234,080.10, 351,120.15 and 84,392.10 is: 126,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,080.10 : 351,120.15 = 84,392.10 : x
  2. Step 2: Convert to fraction form
    234,080.10/351,120.15 = 84,392.10/x
  3. Step 3: Cross multiply
    234,080.10x = 351,120.15 × 84,392.10
  4. Step 4: Simplify right side
    234,080.10x = 29,631,766,810.82
  5. Step 5: Solve for x
    x = 29,631,766,810.82/234,080.10
  6. Step 6: Final answer
    x = 126,588.15

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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.