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Finding the Fourth Proportional to 169,088.21, 253,669.17 and 50,768.78

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Solution

The fourth proportional to 169,088.21, 253,669.17 and 50,768.78 is: 76,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,088.21 : 253,669.17 = 50,768.78 : x
  2. Step 2: Convert to fraction form
    169,088.21/253,669.17 = 50,768.78/x
  3. Step 3: Cross multiply
    169,088.21x = 253,669.17 × 50,768.78
  4. Step 4: Simplify right side
    169,088.21x = 12,878,472,920.98
  5. Step 5: Solve for x
    x = 12,878,472,920.98/169,088.21
  6. Step 6: Final answer
    x = 76,164.23

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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.