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Finding the Fourth Proportional to 202,860.40, 304,290.60 and 84,616.60

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Solution

The fourth proportional to 202,860.40, 304,290.60 and 84,616.60 is: 126,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,860.40 : 304,290.60 = 84,616.60 : x
  2. Step 2: Convert to fraction form
    202,860.40/304,290.60 = 84,616.60/x
  3. Step 3: Cross multiply
    202,860.40x = 304,290.60 × 84,616.60
  4. Step 4: Simplify right side
    202,860.40x = 25,748,035,983.96
  5. Step 5: Solve for x
    x = 25,748,035,983.96/202,860.40
  6. Step 6: Final answer
    x = 126,924.90

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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.