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Finding the Fourth Proportional to 171,751.44, 257,701.32 and 92,921.16

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Solution

The fourth proportional to 171,751.44, 257,701.32 and 92,921.16 is: 139,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,751.44 : 257,701.32 = 92,921.16 : x
  2. Step 2: Convert to fraction form
    171,751.44/257,701.32 = 92,921.16/x
  3. Step 3: Cross multiply
    171,751.44x = 257,701.32 × 92,921.16
  4. Step 4: Simplify right side
    171,751.44x = 23,945,905,587.93
  5. Step 5: Solve for x
    x = 23,945,905,587.93/171,751.44
  6. Step 6: Final answer
    x = 139,421.86

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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.