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Finding the Fourth Proportional to 157,754.44, 217,931.43 and 136,496.80

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Solution

The fourth proportional to 157,754.44, 217,931.43 and 136,496.80 is: 188,564.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,754.44 : 217,931.43 = 136,496.80 : x
  2. Step 2: Convert to fraction form
    157,754.44/217,931.43 = 136,496.80/x
  3. Step 3: Cross multiply
    157,754.44x = 217,931.43 × 136,496.80
  4. Step 4: Simplify right side
    157,754.44x = 29,746,942,814.42
  5. Step 5: Solve for x
    x = 29,746,942,814.42/157,754.44
  6. Step 6: Final answer
    x = 188,564.85

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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.