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Finding the Fourth Proportional to 171,302.92, 256,806.72 and 66,195.64

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Solution

The fourth proportional to 171,302.92, 256,806.72 and 66,195.64 is: 99,236.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,302.92 : 256,806.72 = 66,195.64 : x
  2. Step 2: Convert to fraction form
    171,302.92/256,806.72 = 66,195.64/x
  3. Step 3: Cross multiply
    171,302.92x = 256,806.72 × 66,195.64
  4. Step 4: Simplify right side
    171,302.92x = 16,999,485,186.70
  5. Step 5: Solve for x
    x = 16,999,485,186.70/171,302.92
  6. Step 6: Final answer
    x = 99,236.40

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1.5x scale

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.