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Finding the Fourth Proportional to 453,382.15, 680,111.30 and 137,841.79

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Solution

The fourth proportional to 453,382.15, 680,111.30 and 137,841.79 is: 206,774.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,382.15 : 680,111.30 = 137,841.79 : x
  2. Step 2: Convert to fraction form
    453,382.15/680,111.30 = 137,841.79/x
  3. Step 3: Cross multiply
    453,382.15x = 680,111.30 × 137,841.79
  4. Step 4: Simplify right side
    453,382.15x = 93,747,758,991.23
  5. Step 5: Solve for x
    x = 93,747,758,991.23/453,382.15
  6. Step 6: Final answer
    x = 206,774.26

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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.