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Finding the Fourth Proportional to 70,475.92, 105,552.56 and 35,425.60

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Solution

The fourth proportional to 70,475.92, 105,552.56 and 35,425.60 is: 53,057.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,475.92 : 105,552.56 = 35,425.60 : x
  2. Step 2: Convert to fraction form
    70,475.92/105,552.56 = 35,425.60/x
  3. Step 3: Cross multiply
    70,475.92x = 105,552.56 × 35,425.60
  4. Step 4: Simplify right side
    70,475.92x = 3,739,262,769.54
  5. Step 5: Solve for x
    x = 3,739,262,769.54/70,475.92
  6. Step 6: Final answer
    x = 53,057.31

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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.