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Finding the Fourth Proportional to 202,298.80, 303,448.20 and 108,986.80

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Solution

The fourth proportional to 202,298.80, 303,448.20 and 108,986.80 is: 163,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,298.80 : 303,448.20 = 108,986.80 : x
  2. Step 2: Convert to fraction form
    202,298.80/303,448.20 = 108,986.80/x
  3. Step 3: Cross multiply
    202,298.80x = 303,448.20 × 108,986.80
  4. Step 4: Simplify right side
    202,298.80x = 33,071,848,283.76
  5. Step 5: Solve for x
    x = 33,071,848,283.76/202,298.80
  6. Step 6: Final answer
    x = 163,480.20

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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.