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Finding the Fourth Proportional to 194,159.70, 291,249.15 and 100,847.70

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Solution

The fourth proportional to 194,159.70, 291,249.15 and 100,847.70 is: 151,276.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,159.70 : 291,249.15 = 100,847.70 : x
  2. Step 2: Convert to fraction form
    194,159.70/291,249.15 = 100,847.70/x
  3. Step 3: Cross multiply
    194,159.70x = 291,249.15 × 100,847.70
  4. Step 4: Simplify right side
    194,159.70x = 29,371,806,904.46
  5. Step 5: Solve for x
    x = 29,371,806,904.46/194,159.70
  6. Step 6: Final answer
    x = 151,276.54

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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.