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Finding the Fourth Proportional to 194,487.35, 291,752.91 and 61,328.21

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Solution

The fourth proportional to 194,487.35, 291,752.91 and 61,328.21 is: 91,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,487.35 : 291,752.91 = 61,328.21 : x
  2. Step 2: Convert to fraction form
    194,487.35/291,752.91 = 61,328.21/x
  3. Step 3: Cross multiply
    194,487.35x = 291,752.91 × 61,328.21
  4. Step 4: Simplify right side
    194,487.35x = 17,892,682,273.83
  5. Step 5: Solve for x
    x = 17,892,682,273.83/194,487.35
  6. Step 6: Final answer
    x = 91,999.21

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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.