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Finding the Fourth Proportional to 98,405.39, 147,571.81 and 35,208.38

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Solution

The fourth proportional to 98,405.39, 147,571.81 and 35,208.38 is: 52,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,405.39 : 147,571.81 = 35,208.38 : x
  2. Step 2: Convert to fraction form
    98,405.39/147,571.81 = 35,208.38/x
  3. Step 3: Cross multiply
    98,405.39x = 147,571.81 × 35,208.38
  4. Step 4: Simplify right side
    98,405.39x = 5,195,764,644.68
  5. Step 5: Solve for x
    x = 5,195,764,644.68/98,405.39
  6. Step 6: Final answer
    x = 52,799.59

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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.