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Finding the Fourth Proportional to 169,317.31, 233,624.94 and 100,394.01

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Solution

The fourth proportional to 169,317.31, 233,624.94 and 100,394.01 is: 138,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,317.31 : 233,624.94 = 100,394.01 : x
  2. Step 2: Convert to fraction form
    169,317.31/233,624.94 = 100,394.01/x
  3. Step 3: Cross multiply
    169,317.31x = 233,624.94 × 100,394.01
  4. Step 4: Simplify right side
    169,317.31x = 23,454,544,562.61
  5. Step 5: Solve for x
    x = 23,454,544,562.61/169,317.31
  6. Step 6: Final answer
    x = 138,524.20

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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.