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Finding the Fourth Proportional to 269,941.64, 404,870.83 and 90,030.22

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Solution

The fourth proportional to 269,941.64, 404,870.83 and 90,030.22 is: 135,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,941.64 : 404,870.83 = 90,030.22 : x
  2. Step 2: Convert to fraction form
    269,941.64/404,870.83 = 90,030.22/x
  3. Step 3: Cross multiply
    269,941.64x = 404,870.83 × 90,030.22
  4. Step 4: Simplify right side
    269,941.64x = 36,450,608,659.23
  5. Step 5: Solve for x
    x = 36,450,608,659.23/269,941.64
  6. Step 6: Final answer
    x = 135,031.44

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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.