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Finding the Fourth Proportional to 107,498.88, 161,248.32 and 88,992

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Solution

The fourth proportional to 107,498.88, 161,248.32 and 88,992 is: 133,488

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,498.88 : 161,248.32 = 88,992 : x
  2. Step 2: Convert to fraction form
    107,498.88/161,248.32 = 88,992/x
  3. Step 3: Cross multiply
    107,498.88x = 161,248.32 × 88,992
  4. Step 4: Simplify right side
    107,498.88x = 14,349,810,493.44
  5. Step 5: Solve for x
    x = 14,349,810,493.44/107,498.88
  6. Step 6: Final answer
    x = 133,488

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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.