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Finding the Fourth Proportional to 171,719.10, 257,574.60 and 47,060.10

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Solution

The fourth proportional to 171,719.10, 257,574.60 and 47,060.10 is: 70,589.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,719.10 : 257,574.60 = 47,060.10 : x
  2. Step 2: Convert to fraction form
    171,719.10/257,574.60 = 47,060.10/x
  3. Step 3: Cross multiply
    171,719.10x = 257,574.60 × 47,060.10
  4. Step 4: Simplify right side
    171,719.10x = 12,121,486,433.46
  5. Step 5: Solve for x
    x = 12,121,486,433.46/171,719.10
  6. Step 6: Final answer
    x = 70,589.04

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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.