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Finding the Fourth Proportional to 194,970.43, 292,474.92 and 81,094.87

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Solution

The fourth proportional to 194,970.43, 292,474.92 and 81,094.87 is: 121,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,970.43 : 292,474.92 = 81,094.87 : x
  2. Step 2: Convert to fraction form
    194,970.43/292,474.92 = 81,094.87/x
  3. Step 3: Cross multiply
    194,970.43x = 292,474.92 × 81,094.87
  4. Step 4: Simplify right side
    194,970.43x = 23,718,215,615.66
  5. Step 5: Solve for x
    x = 23,718,215,615.66/194,970.43
  6. Step 6: Final answer
    x = 121,650.32

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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.