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Finding the Fourth Proportional to 79,706.99, 109,998.57 and 49,508.96

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Solution

The fourth proportional to 79,706.99, 109,998.57 and 49,508.96 is: 68,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,706.99 : 109,998.57 = 49,508.96 : x
  2. Step 2: Convert to fraction form
    79,706.99/109,998.57 = 49,508.96/x
  3. Step 3: Cross multiply
    79,706.99x = 109,998.57 × 49,508.96
  4. Step 4: Simplify right side
    79,706.99x = 5,445,914,802.19
  5. Step 5: Solve for x
    x = 5,445,914,802.19/79,706.99
  6. Step 6: Final answer
    x = 68,324.18

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1.5x scale

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.