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Finding the Fourth Proportional to 171,700.65, 257,549.76 and 53,371.80

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Solution

The fourth proportional to 171,700.65, 257,549.76 and 53,371.80 is: 80,057.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,700.65 : 257,549.76 = 53,371.80 : x
  2. Step 2: Convert to fraction form
    171,700.65/257,549.76 = 53,371.80/x
  3. Step 3: Cross multiply
    171,700.65x = 257,549.76 × 53,371.80
  4. Step 4: Simplify right side
    171,700.65x = 13,745,894,280.77
  5. Step 5: Solve for x
    x = 13,745,894,280.77/171,700.65
  6. Step 6: Final answer
    x = 80,057.32

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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.