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Finding the Fourth Proportional to 92,643.39, 138,973.29 and 26,084.09

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Solution

The fourth proportional to 92,643.39, 138,973.29 and 26,084.09 is: 39,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,643.39 : 138,973.29 = 26,084.09 : x
  2. Step 2: Convert to fraction form
    92,643.39/138,973.29 = 26,084.09/x
  3. Step 3: Cross multiply
    92,643.39x = 138,973.29 × 26,084.09
  4. Step 4: Simplify right side
    92,643.39x = 3,624,991,673.54
  5. Step 5: Solve for x
    x = 3,624,991,673.54/92,643.39
  6. Step 6: Final answer
    x = 39,128.44

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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.