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Finding the Fourth Proportional to 441,107.60, 661,661.40 and 125,574.80

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Solution

The fourth proportional to 441,107.60, 661,661.40 and 125,574.80 is: 188,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,107.60 : 661,661.40 = 125,574.80 : x
  2. Step 2: Convert to fraction form
    441,107.60/661,661.40 = 125,574.80/x
  3. Step 3: Cross multiply
    441,107.60x = 661,661.40 × 125,574.80
  4. Step 4: Simplify right side
    441,107.60x = 83,087,997,972.72
  5. Step 5: Solve for x
    x = 83,087,997,972.72/441,107.60
  6. Step 6: Final answer
    x = 188,362.20

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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.