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Finding the Fourth Proportional to 161,424.33, 241,975.83 and 77,085.90

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Solution

The fourth proportional to 161,424.33, 241,975.83 and 77,085.90 is: 115,552.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,424.33 : 241,975.83 = 77,085.90 : x
  2. Step 2: Convert to fraction form
    161,424.33/241,975.83 = 77,085.90/x
  3. Step 3: Cross multiply
    161,424.33x = 241,975.83 × 77,085.90
  4. Step 4: Simplify right side
    161,424.33x = 18,652,924,633.80
  5. Step 5: Solve for x
    x = 18,652,924,633.80/161,424.33
  6. Step 6: Final answer
    x = 115,552.13

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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.