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Finding the Fourth Proportional to 194,171.70, 291,267.15 and 100,859.70

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Solution

The fourth proportional to 194,171.70, 291,267.15 and 100,859.70 is: 151,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,171.70 : 291,267.15 = 100,859.70 : x
  2. Step 2: Convert to fraction form
    194,171.70/291,267.15 = 100,859.70/x
  3. Step 3: Cross multiply
    194,171.70x = 291,267.15 × 100,859.70
  4. Step 4: Simplify right side
    194,171.70x = 29,377,117,368.86
  5. Step 5: Solve for x
    x = 29,377,117,368.86/194,171.70
  6. Step 6: Final answer
    x = 151,294.54

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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.