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Finding the Fourth Proportional to 171,732.56, 257,569.68 and 45,374.18

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Solution

The fourth proportional to 171,732.56, 257,569.68 and 45,374.18 is: 68,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,732.56 : 257,569.68 = 45,374.18 : x
  2. Step 2: Convert to fraction form
    171,732.56/257,569.68 = 45,374.18/x
  3. Step 3: Cross multiply
    171,732.56x = 257,569.68 × 45,374.18
  4. Step 4: Simplify right side
    171,732.56x = 11,687,013,022.86
  5. Step 5: Solve for x
    x = 11,687,013,022.86/171,732.56
  6. Step 6: Final answer
    x = 68,053.57

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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.