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Finding the Fourth Proportional to 170,672.72, 256,010.64 and 65,466.80

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Solution

The fourth proportional to 170,672.72, 256,010.64 and 65,466.80 is: 98,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,672.72 : 256,010.64 = 65,466.80 : x
  2. Step 2: Convert to fraction form
    170,672.72/256,010.64 = 65,466.80/x
  3. Step 3: Cross multiply
    170,672.72x = 256,010.64 × 65,466.80
  4. Step 4: Simplify right side
    170,672.72x = 16,760,197,366.75
  5. Step 5: Solve for x
    x = 16,760,197,366.75/170,672.72
  6. Step 6: Final answer
    x = 98,200.80

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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.