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Finding the Fourth Proportional to 171,955.91, 257,921.64 and 45,593.34

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Solution

The fourth proportional to 171,955.91, 257,921.64 and 45,593.34 is: 68,386.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,955.91 : 257,921.64 = 45,593.34 : x
  2. Step 2: Convert to fraction form
    171,955.91/257,921.64 = 45,593.34/x
  3. Step 3: Cross multiply
    171,955.91x = 257,921.64 × 45,593.34
  4. Step 4: Simplify right side
    171,955.91x = 11,759,509,025.88
  5. Step 5: Solve for x
    x = 11,759,509,025.88/171,955.91
  6. Step 6: Final answer
    x = 68,386.77

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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.