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Finding the Fourth Proportional to 169,169.84, 253,736.90 and 89,175.76

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Solution

The fourth proportional to 169,169.84, 253,736.90 and 89,175.76 is: 133,754.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,169.84 : 253,736.90 = 89,175.76 : x
  2. Step 2: Convert to fraction form
    169,169.84/253,736.90 = 89,175.76/x
  3. Step 3: Cross multiply
    169,169.84x = 253,736.90 × 89,175.76
  4. Step 4: Simplify right side
    169,169.84x = 22,627,180,897.54
  5. Step 5: Solve for x
    x = 22,627,180,897.54/169,169.84
  6. Step 6: Final answer
    x = 133,754.23

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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.