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Finding the Fourth Proportional to 194,862.80, 292,132.20 and 82,629.20

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Solution

The fourth proportional to 194,862.80, 292,132.20 and 82,629.20 is: 123,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,862.80 : 292,132.20 = 82,629.20 : x
  2. Step 2: Convert to fraction form
    194,862.80/292,132.20 = 82,629.20/x
  3. Step 3: Cross multiply
    194,862.80x = 292,132.20 × 82,629.20
  4. Step 4: Simplify right side
    194,862.80x = 24,138,649,980.24
  5. Step 5: Solve for x
    x = 24,138,649,980.24/194,862.80
  6. Step 6: Final answer
    x = 123,875.11

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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.