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Finding the Fourth Proportional to 168,706.80, 253,351.80 and 109,803.60

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Solution

The fourth proportional to 168,706.80, 253,351.80 and 109,803.60 is: 164,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,706.80 : 253,351.80 = 109,803.60 : x
  2. Step 2: Convert to fraction form
    168,706.80/253,351.80 = 109,803.60/x
  3. Step 3: Cross multiply
    168,706.80x = 253,351.80 × 109,803.60
  4. Step 4: Simplify right side
    168,706.80x = 27,818,939,706.48
  5. Step 5: Solve for x
    x = 27,818,939,706.48/168,706.80
  6. Step 6: Final answer
    x = 164,895.19

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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.