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Finding the Fourth Proportional to 171,011.43, 256,590.90 and 92,109.87

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Solution

The fourth proportional to 171,011.43, 256,590.90 and 92,109.87 is: 138,204.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,011.43 : 256,590.90 = 92,109.87 : x
  2. Step 2: Convert to fraction form
    171,011.43/256,590.90 = 92,109.87/x
  3. Step 3: Cross multiply
    171,011.43x = 256,590.90 × 92,109.87
  4. Step 4: Simplify right side
    171,011.43x = 23,634,554,442.18
  5. Step 5: Solve for x
    x = 23,634,554,442.18/171,011.43
  6. Step 6: Final answer
    x = 138,204.53

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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.