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Finding the Fourth Proportional to 70,308.12, 105,477.96 and 23,559.78

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Solution

The fourth proportional to 70,308.12, 105,477.96 and 23,559.78 is: 35,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,308.12 : 105,477.96 = 23,559.78 : x
  2. Step 2: Convert to fraction form
    70,308.12/105,477.96 = 23,559.78/x
  3. Step 3: Cross multiply
    70,308.12x = 105,477.96 × 23,559.78
  4. Step 4: Simplify right side
    70,308.12x = 2,485,037,532.45
  5. Step 5: Solve for x
    x = 2,485,037,532.45/70,308.12
  6. Step 6: Final answer
    x = 35,344.96

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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.