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Finding the Fourth Proportional to 103,266.27, 154,903.22 and 28,392.27

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Solution

The fourth proportional to 103,266.27, 154,903.22 and 28,392.27 is: 42,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,266.27 : 154,903.22 = 28,392.27 : x
  2. Step 2: Convert to fraction form
    103,266.27/154,903.22 = 28,392.27/x
  3. Step 3: Cross multiply
    103,266.27x = 154,903.22 × 28,392.27
  4. Step 4: Simplify right side
    103,266.27x = 4,398,053,904.15
  5. Step 5: Solve for x
    x = 4,398,053,904.15/103,266.27
  6. Step 6: Final answer
    x = 42,589.45

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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.