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Finding the Fourth Proportional to 253,237.32, 349,536.60 and 157,687.56

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Solution

The fourth proportional to 253,237.32, 349,536.60 and 157,687.56 is: 217,651.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,237.32 : 349,536.60 = 157,687.56 : x
  2. Step 2: Convert to fraction form
    253,237.32/349,536.60 = 157,687.56/x
  3. Step 3: Cross multiply
    253,237.32x = 349,536.60 × 157,687.56
  4. Step 4: Simplify right side
    253,237.32x = 55,117,573,584.70
  5. Step 5: Solve for x
    x = 55,117,573,584.70/253,237.32
  6. Step 6: Final answer
    x = 217,651.86

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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.