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Finding the Fourth Proportional to 194,957.80, 292,436.70 and 54,698.20

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Solution

The fourth proportional to 194,957.80, 292,436.70 and 54,698.20 is: 82,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,957.80 : 292,436.70 = 54,698.20 : x
  2. Step 2: Convert to fraction form
    194,957.80/292,436.70 = 54,698.20/x
  3. Step 3: Cross multiply
    194,957.80x = 292,436.70 × 54,698.20
  4. Step 4: Simplify right side
    194,957.80x = 15,995,761,103.94
  5. Step 5: Solve for x
    x = 15,995,761,103.94/194,957.80
  6. Step 6: Final answer
    x = 82,047.30

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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.