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Finding the Fourth Proportional to 171,359.55, 256,840.61 and 101,297.79

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Solution

The fourth proportional to 171,359.55, 256,840.61 and 101,297.79 is: 151,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,359.55 : 256,840.61 = 101,297.79 : x
  2. Step 2: Convert to fraction form
    171,359.55/256,840.61 = 101,297.79/x
  3. Step 3: Cross multiply
    171,359.55x = 256,840.61 × 101,297.79
  4. Step 4: Simplify right side
    171,359.55x = 26,017,385,668.76
  5. Step 5: Solve for x
    x = 26,017,385,668.76/171,359.55
  6. Step 6: Final answer
    x = 151,829.21

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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.