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Finding the Fourth Proportional to 312,828.75, 431,701.11 and 169,585.11

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Solution

The fourth proportional to 312,828.75, 431,701.11 and 169,585.11 is: 234,026.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,828.75 : 431,701.11 = 169,585.11 : x
  2. Step 2: Convert to fraction form
    312,828.75/431,701.11 = 169,585.11/x
  3. Step 3: Cross multiply
    312,828.75x = 431,701.11 × 169,585.11
  4. Step 4: Simplify right side
    312,828.75x = 73,210,080,226.47
  5. Step 5: Solve for x
    x = 73,210,080,226.47/312,828.75
  6. Step 6: Final answer
    x = 234,026.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.