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Finding the Fourth Proportional to 272,833.40, 410,124.90 and 194,490.20

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Solution

The fourth proportional to 272,833.40, 410,124.90 and 194,490.20 is: 292,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,833.40 : 410,124.90 = 194,490.20 : x
  2. Step 2: Convert to fraction form
    272,833.40/410,124.90 = 194,490.20/x
  3. Step 3: Cross multiply
    272,833.40x = 410,124.90 × 194,490.20
  4. Step 4: Simplify right side
    272,833.40x = 79,765,273,825.98
  5. Step 5: Solve for x
    x = 79,765,273,825.98/272,833.40
  6. Step 6: Final answer
    x = 292,358.90

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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.