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Finding the Fourth Proportional to 338,726.78, 508,091.08 and 114,244.92

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Solution

The fourth proportional to 338,726.78, 508,091.08 and 114,244.92 is: 171,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,726.78 : 508,091.08 = 114,244.92 : x
  2. Step 2: Convert to fraction form
    338,726.78/508,091.08 = 114,244.92/x
  3. Step 3: Cross multiply
    338,726.78x = 508,091.08 × 114,244.92
  4. Step 4: Simplify right side
    338,726.78x = 58,046,824,787.31
  5. Step 5: Solve for x
    x = 58,046,824,787.31/338,726.78
  6. Step 6: Final answer
    x = 171,367.69

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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.