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Finding the Fourth Proportional to 70,442.11, 105,673.01 and 23,060.90

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Solution

The fourth proportional to 70,442.11, 105,673.01 and 23,060.90 is: 34,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,442.11 : 105,673.01 = 23,060.90 : x
  2. Step 2: Convert to fraction form
    70,442.11/105,673.01 = 23,060.90/x
  3. Step 3: Cross multiply
    70,442.11x = 105,673.01 × 23,060.90
  4. Step 4: Simplify right side
    70,442.11x = 2,436,914,716.31
  5. Step 5: Solve for x
    x = 2,436,914,716.31/70,442.11
  6. Step 6: Final answer
    x = 34,594.57

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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.