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Finding the Fourth Proportional to 171,079.65, 256,602.98 and 52,719.21

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Solution

The fourth proportional to 171,079.65, 256,602.98 and 52,719.21 is: 79,073.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,079.65 : 256,602.98 = 52,719.21 : x
  2. Step 2: Convert to fraction form
    171,079.65/256,602.98 = 52,719.21/x
  3. Step 3: Cross multiply
    171,079.65x = 256,602.98 × 52,719.21
  4. Step 4: Simplify right side
    171,079.65x = 13,527,906,389.25
  5. Step 5: Solve for x
    x = 13,527,906,389.25/171,079.65
  6. Step 6: Final answer
    x = 79,073.73

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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.