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Finding the Fourth Proportional to 70,107.40, 105,048.78 and 36,826.12

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Solution

The fourth proportional to 70,107.40, 105,048.78 and 36,826.12 is: 55,180.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,107.40 : 105,048.78 = 36,826.12 : x
  2. Step 2: Convert to fraction form
    70,107.40/105,048.78 = 36,826.12/x
  3. Step 3: Cross multiply
    70,107.40x = 105,048.78 × 36,826.12
  4. Step 4: Simplify right side
    70,107.40x = 3,868,538,978.13
  5. Step 5: Solve for x
    x = 3,868,538,978.13/70,107.40
  6. Step 6: Final answer
    x = 55,180.18

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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.