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Finding the Fourth Proportional to 171,123.21, 256,619.20 and 58,782.49

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Solution

The fourth proportional to 171,123.21, 256,619.20 and 58,782.49 is: 88,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,123.21 : 256,619.20 = 58,782.49 : x
  2. Step 2: Convert to fraction form
    171,123.21/256,619.20 = 58,782.49/x
  3. Step 3: Cross multiply
    171,123.21x = 256,619.20 × 58,782.49
  4. Step 4: Simplify right side
    171,123.21x = 15,084,715,557.81
  5. Step 5: Solve for x
    x = 15,084,715,557.81/171,123.21
  6. Step 6: Final answer
    x = 88,151.20

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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.