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Finding the Fourth Proportional to 171,078.65, 256,601.48 and 52,718.21

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Solution

The fourth proportional to 171,078.65, 256,601.48 and 52,718.21 is: 79,072.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,078.65 : 256,601.48 = 52,718.21 : x
  2. Step 2: Convert to fraction form
    171,078.65/256,601.48 = 52,718.21/x
  3. Step 3: Cross multiply
    171,078.65x = 256,601.48 × 52,718.21
  4. Step 4: Simplify right side
    171,078.65x = 13,527,570,840.75
  5. Step 5: Solve for x
    x = 13,527,570,840.75/171,078.65
  6. Step 6: Final answer
    x = 79,072.23

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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.