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Finding the Fourth Proportional to 171,705.66, 257,557.26 and 53,376.80

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Solution

The fourth proportional to 171,705.66, 257,557.26 and 53,376.80 is: 80,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,705.66 : 257,557.26 = 53,376.80 : x
  2. Step 2: Convert to fraction form
    171,705.66/257,557.26 = 53,376.80/x
  3. Step 3: Cross multiply
    171,705.66x = 257,557.26 × 53,376.80
  4. Step 4: Simplify right side
    171,705.66x = 13,747,582,355.57
  5. Step 5: Solve for x
    x = 13,747,582,355.57/171,705.66
  6. Step 6: Final answer
    x = 80,064.82

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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.