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Finding the Fourth Proportional to 256,701.66, 354,372.03 and 170,803.59

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Solution

The fourth proportional to 256,701.66, 354,372.03 and 170,803.59 is: 235,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,701.66 : 354,372.03 = 170,803.59 : x
  2. Step 2: Convert to fraction form
    256,701.66/354,372.03 = 170,803.59/x
  3. Step 3: Cross multiply
    256,701.66x = 354,372.03 × 170,803.59
  4. Step 4: Simplify right side
    256,701.66x = 60,528,014,919.59
  5. Step 5: Solve for x
    x = 60,528,014,919.59/256,701.66
  6. Step 6: Final answer
    x = 235,791.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.