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Finding the Fourth Proportional to 161,503.93, 242,265.62 and 68,016.97

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Solution

The fourth proportional to 161,503.93, 242,265.62 and 68,016.97 is: 102,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,503.93 : 242,265.62 = 68,016.97 : x
  2. Step 2: Convert to fraction form
    161,503.93/242,265.62 = 68,016.97/x
  3. Step 3: Cross multiply
    161,503.93x = 242,265.62 × 68,016.97
  4. Step 4: Simplify right side
    161,503.93x = 16,478,173,407.57
  5. Step 5: Solve for x
    x = 16,478,173,407.57/161,503.93
  6. Step 6: Final answer
    x = 102,029.55

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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.