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Finding the Fourth Proportional to 161,293.98, 241,758.50 and 81,204.68

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Solution

The fourth proportional to 161,293.98, 241,758.50 and 81,204.68 is: 121,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,293.98 : 241,758.50 = 81,204.68 : x
  2. Step 2: Convert to fraction form
    161,293.98/241,758.50 = 81,204.68/x
  3. Step 3: Cross multiply
    161,293.98x = 241,758.50 × 81,204.68
  4. Step 4: Simplify right side
    161,293.98x = 19,631,920,696.65
  5. Step 5: Solve for x
    x = 19,631,920,696.65/161,293.98
  6. Step 6: Final answer
    x = 121,715.15

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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.