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Finding the Fourth Proportional to 183,371.74, 253,135.90 and 115,488.47

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Solution

The fourth proportional to 183,371.74, 253,135.90 and 115,488.47 is: 159,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,371.74 : 253,135.90 = 115,488.47 : x
  2. Step 2: Convert to fraction form
    183,371.74/253,135.90 = 115,488.47/x
  3. Step 3: Cross multiply
    183,371.74x = 253,135.90 × 115,488.47
  4. Step 4: Simplify right side
    183,371.74x = 29,234,277,793.07
  5. Step 5: Solve for x
    x = 29,234,277,793.07/183,371.74
  6. Step 6: Final answer
    x = 159,426.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.