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Finding the Fourth Proportional to 170,672.80, 256,300.80 and 111,769.60

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Solution

The fourth proportional to 170,672.80, 256,300.80 and 111,769.60 is: 167,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,672.80 : 256,300.80 = 111,769.60 : x
  2. Step 2: Convert to fraction form
    170,672.80/256,300.80 = 111,769.60/x
  3. Step 3: Cross multiply
    170,672.80x = 256,300.80 × 111,769.60
  4. Step 4: Simplify right side
    170,672.80x = 28,646,637,895.68
  5. Step 5: Solve for x
    x = 28,646,637,895.68/170,672.80
  6. Step 6: Final answer
    x = 167,845.36

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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.