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Finding the Fourth Proportional to 171,709.16, 257,600.22 and 53,377.64

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Solution

The fourth proportional to 171,709.16, 257,600.22 and 53,377.64 is: 80,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,709.16 : 257,600.22 = 53,377.64 : x
  2. Step 2: Convert to fraction form
    171,709.16/257,600.22 = 53,377.64/x
  3. Step 3: Cross multiply
    171,709.16x = 257,600.22 × 53,377.64
  4. Step 4: Simplify right side
    171,709.16x = 13,750,091,807.08
  5. Step 5: Solve for x
    x = 13,750,091,807.08/171,709.16
  6. Step 6: Final answer
    x = 80,077.80

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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.