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Finding the Fourth Proportional to 293,892.10, 440,838.15 and 72,276.10

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Solution

The fourth proportional to 293,892.10, 440,838.15 and 72,276.10 is: 108,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,892.10 : 440,838.15 = 72,276.10 : x
  2. Step 2: Convert to fraction form
    293,892.10/440,838.15 = 72,276.10/x
  3. Step 3: Cross multiply
    293,892.10x = 440,838.15 × 72,276.10
  4. Step 4: Simplify right side
    293,892.10x = 31,862,062,213.22
  5. Step 5: Solve for x
    x = 31,862,062,213.22/293,892.10
  6. Step 6: Final answer
    x = 108,414.15

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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.