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Finding the Fourth Proportional to 171,898.20, 257,847.30 and 162,056.70

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Solution

The fourth proportional to 171,898.20, 257,847.30 and 162,056.70 is: 243,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,898.20 : 257,847.30 = 162,056.70 : x
  2. Step 2: Convert to fraction form
    171,898.20/257,847.30 = 162,056.70/x
  3. Step 3: Cross multiply
    171,898.20x = 257,847.30 × 162,056.70
  4. Step 4: Simplify right side
    171,898.20x = 41,785,882,541.91
  5. Step 5: Solve for x
    x = 41,785,882,541.91/171,898.20
  6. Step 6: Final answer
    x = 243,085.05

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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.