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Finding the Fourth Proportional to 171,161.41, 256,742.16 and 64,516.48

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Solution

The fourth proportional to 171,161.41, 256,742.16 and 64,516.48 is: 96,774.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,161.41 : 256,742.16 = 64,516.48 : x
  2. Step 2: Convert to fraction form
    171,161.41/256,742.16 = 64,516.48/x
  3. Step 3: Cross multiply
    171,161.41x = 256,742.16 × 64,516.48
  4. Step 4: Simplify right side
    171,161.41x = 16,564,100,430.80
  5. Step 5: Solve for x
    x = 16,564,100,430.80/171,161.41
  6. Step 6: Final answer
    x = 96,774.74

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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.