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Finding the Fourth Proportional to 171,038.90, 256,449.68 and 150,021.15

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Solution

The fourth proportional to 171,038.90, 256,449.68 and 150,021.15 is: 224,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,038.90 : 256,449.68 = 150,021.15 : x
  2. Step 2: Convert to fraction form
    171,038.90/256,449.68 = 150,021.15/x
  3. Step 3: Cross multiply
    171,038.90x = 256,449.68 × 150,021.15
  4. Step 4: Simplify right side
    171,038.90x = 38,472,875,910.73
  5. Step 5: Solve for x
    x = 38,472,875,910.73/171,038.90
  6. Step 6: Final answer
    x = 224,936.41

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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.