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Finding the Fourth Proportional to 171,948.70, 257,923.05 and 169,324.30

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Solution

The fourth proportional to 171,948.70, 257,923.05 and 169,324.30 is: 253,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,948.70 : 257,923.05 = 169,324.30 : x
  2. Step 2: Convert to fraction form
    171,948.70/257,923.05 = 169,324.30/x
  3. Step 3: Cross multiply
    171,948.70x = 257,923.05 × 169,324.30
  4. Step 4: Simplify right side
    171,948.70x = 43,672,639,895.12
  5. Step 5: Solve for x
    x = 43,672,639,895.12/171,948.70
  6. Step 6: Final answer
    x = 253,986.45

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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.