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Finding the Fourth Proportional to 487,993.64, 731,907.41 and 132,924.60

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Solution

The fourth proportional to 487,993.64, 731,907.41 and 132,924.60 is: 199,364.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,993.64 : 731,907.41 = 132,924.60 : x
  2. Step 2: Convert to fraction form
    487,993.64/731,907.41 = 132,924.60/x
  3. Step 3: Cross multiply
    487,993.64x = 731,907.41 × 132,924.60
  4. Step 4: Simplify right side
    487,993.64x = 97,288,499,046.66
  5. Step 5: Solve for x
    x = 97,288,499,046.66/487,993.64
  6. Step 6: Final answer
    x = 199,364.28

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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.