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Finding the Fourth Proportional to 251,078.73, 376,638.57 and 117,886.32

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Solution

The fourth proportional to 251,078.73, 376,638.57 and 117,886.32 is: 176,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,078.73 : 376,638.57 = 117,886.32 : x
  2. Step 2: Convert to fraction form
    251,078.73/376,638.57 = 117,886.32/x
  3. Step 3: Cross multiply
    251,078.73x = 376,638.57 × 117,886.32
  4. Step 4: Simplify right side
    251,078.73x = 44,400,534,987.36
  5. Step 5: Solve for x
    x = 44,400,534,987.36/251,078.73
  6. Step 6: Final answer
    x = 176,839.09

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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.