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Finding the Fourth Proportional to 171,074.16, 256,429.80 and 65,847.60

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Solution

The fourth proportional to 171,074.16, 256,429.80 and 65,847.60 is: 98,701.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,074.16 : 256,429.80 = 65,847.60 : x
  2. Step 2: Convert to fraction form
    171,074.16/256,429.80 = 65,847.60/x
  3. Step 3: Cross multiply
    171,074.16x = 256,429.80 × 65,847.60
  4. Step 4: Simplify right side
    171,074.16x = 16,885,286,898.48
  5. Step 5: Solve for x
    x = 16,885,286,898.48/171,074.16
  6. Step 6: Final answer
    x = 98,701.56

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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.