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Finding the Fourth Proportional to 441,864.80, 662,907.60 and 142,373.60

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Solution

The fourth proportional to 441,864.80, 662,907.60 and 142,373.60 is: 213,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,864.80 : 662,907.60 = 142,373.60 : x
  2. Step 2: Convert to fraction form
    441,864.80/662,907.60 = 142,373.60/x
  3. Step 3: Cross multiply
    441,864.80x = 662,907.60 × 142,373.60
  4. Step 4: Simplify right side
    441,864.80x = 94,380,541,479.36
  5. Step 5: Solve for x
    x = 94,380,541,479.36/441,864.80
  6. Step 6: Final answer
    x = 213,595.97

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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.