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Finding the Fourth Proportional to 70,809.73, 97,709.40 and 41,736.19

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Solution

The fourth proportional to 70,809.73, 97,709.40 and 41,736.19 is: 57,591.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,809.73 : 97,709.40 = 41,736.19 : x
  2. Step 2: Convert to fraction form
    70,809.73/97,709.40 = 41,736.19/x
  3. Step 3: Cross multiply
    70,809.73x = 97,709.40 × 41,736.19
  4. Step 4: Simplify right side
    70,809.73x = 4,078,018,083.19
  5. Step 5: Solve for x
    x = 4,078,018,083.19/70,809.73
  6. Step 6: Final answer
    x = 57,591.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.