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Finding the Fourth Proportional to 387,467.55, 580,963.59 and 150,533.64

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Solution

The fourth proportional to 387,467.55, 580,963.59 and 150,533.64 is: 225,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,467.55 : 580,963.59 = 150,533.64 : x
  2. Step 2: Convert to fraction form
    387,467.55/580,963.59 = 150,533.64/x
  3. Step 3: Cross multiply
    387,467.55x = 580,963.59 × 150,533.64
  4. Step 4: Simplify right side
    387,467.55x = 87,454,563,910.17
  5. Step 5: Solve for x
    x = 87,454,563,910.17/387,467.55
  6. Step 6: Final answer
    x = 225,708.10

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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.