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Finding the Fourth Proportional to 171,256.62, 256,821.21 and 58,905.30

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Solution

The fourth proportional to 171,256.62, 256,821.21 and 58,905.30 is: 88,336.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,256.62 : 256,821.21 = 58,905.30 : x
  2. Step 2: Convert to fraction form
    171,256.62/256,821.21 = 58,905.30/x
  3. Step 3: Cross multiply
    171,256.62x = 256,821.21 × 58,905.30
  4. Step 4: Simplify right side
    171,256.62x = 15,128,130,421.41
  5. Step 5: Solve for x
    x = 15,128,130,421.41/171,256.62
  6. Step 6: Final answer
    x = 88,336.03

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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.