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Finding the Fourth Proportional to 92,642.64, 138,972.16 and 26,083.34

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Solution

The fourth proportional to 92,642.64, 138,972.16 and 26,083.34 is: 39,127.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,642.64 : 138,972.16 = 26,083.34 : x
  2. Step 2: Convert to fraction form
    92,642.64/138,972.16 = 26,083.34/x
  3. Step 3: Cross multiply
    92,642.64x = 138,972.16 × 26,083.34
  4. Step 4: Simplify right side
    92,642.64x = 3,624,858,099.81
  5. Step 5: Solve for x
    x = 3,624,858,099.81/92,642.64
  6. Step 6: Final answer
    x = 39,127.32

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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.