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Finding the Fourth Proportional to 68,113.66, 102,156.29 and 25,984.29

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Solution

The fourth proportional to 68,113.66, 102,156.29 and 25,984.29 is: 38,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,113.66 : 102,156.29 = 25,984.29 : x
  2. Step 2: Convert to fraction form
    68,113.66/102,156.29 = 25,984.29/x
  3. Step 3: Cross multiply
    68,113.66x = 102,156.29 × 25,984.29
  4. Step 4: Simplify right side
    68,113.66x = 2,654,459,015.29
  5. Step 5: Solve for x
    x = 2,654,459,015.29/68,113.66
  6. Step 6: Final answer
    x = 38,971.02

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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.