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Finding the Fourth Proportional to 202,326.34, 279,210.31 and 111,682.28

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Solution

The fourth proportional to 202,326.34, 279,210.31 and 111,682.28 is: 154,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,326.34 : 279,210.31 = 111,682.28 : x
  2. Step 2: Convert to fraction form
    202,326.34/279,210.31 = 111,682.28/x
  3. Step 3: Cross multiply
    202,326.34x = 279,210.31 × 111,682.28
  4. Step 4: Simplify right side
    202,326.34x = 31,182,844,020.31
  5. Step 5: Solve for x
    x = 31,182,844,020.31/202,326.34
  6. Step 6: Final answer
    x = 154,121.52

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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.