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Finding the Fourth Proportional to 92,087.84, 138,111.20 and 35,929.44

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Solution

The fourth proportional to 92,087.84, 138,111.20 and 35,929.44 is: 53,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,087.84 : 138,111.20 = 35,929.44 : x
  2. Step 2: Convert to fraction form
    92,087.84/138,111.20 = 35,929.44/x
  3. Step 3: Cross multiply
    92,087.84x = 138,111.20 × 35,929.44
  4. Step 4: Simplify right side
    92,087.84x = 4,962,258,073.73
  5. Step 5: Solve for x
    x = 4,962,258,073.73/92,087.84
  6. Step 6: Final answer
    x = 53,886.14

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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.