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Finding the Fourth Proportional to 171,688.30, 257,532.45 and 162,940.30

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Solution

The fourth proportional to 171,688.30, 257,532.45 and 162,940.30 is: 244,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,688.30 : 257,532.45 = 162,940.30 : x
  2. Step 2: Convert to fraction form
    171,688.30/257,532.45 = 162,940.30/x
  3. Step 3: Cross multiply
    171,688.30x = 257,532.45 × 162,940.30
  4. Step 4: Simplify right side
    171,688.30x = 41,962,414,662.74
  5. Step 5: Solve for x
    x = 41,962,414,662.74/171,688.30
  6. Step 6: Final answer
    x = 244,410.45

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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.