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Finding the Fourth Proportional to 194,439.30, 291,486.15 and 127,911.30

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Solution

The fourth proportional to 194,439.30, 291,486.15 and 127,911.30 is: 191,753.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,439.30 : 291,486.15 = 127,911.30 : x
  2. Step 2: Convert to fraction form
    194,439.30/291,486.15 = 127,911.30/x
  3. Step 3: Cross multiply
    194,439.30x = 291,486.15 × 127,911.30
  4. Step 4: Simplify right side
    194,439.30x = 37,284,372,378.50
  5. Step 5: Solve for x
    x = 37,284,372,378.50/194,439.30
  6. Step 6: Final answer
    x = 191,753.27

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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.