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Finding the Fourth Proportional to 194,663.70, 291,995.55 and 192,039.30

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Solution

The fourth proportional to 194,663.70, 291,995.55 and 192,039.30 is: 288,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,663.70 : 291,995.55 = 192,039.30 : x
  2. Step 2: Convert to fraction form
    194,663.70/291,995.55 = 192,039.30/x
  3. Step 3: Cross multiply
    194,663.70x = 291,995.55 × 192,039.30
  4. Step 4: Simplify right side
    194,663.70x = 56,074,621,025.12
  5. Step 5: Solve for x
    x = 56,074,621,025.12/194,663.70
  6. Step 6: Final answer
    x = 288,058.95

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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.