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Finding the Fourth Proportional to 394,520.24, 591,533.80 and 166,698.72

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Solution

The fourth proportional to 394,520.24, 591,533.80 and 166,698.72 is: 249,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,520.24 : 591,533.80 = 166,698.72 : x
  2. Step 2: Convert to fraction form
    394,520.24/591,533.80 = 166,698.72/x
  3. Step 3: Cross multiply
    394,520.24x = 591,533.80 × 166,698.72
  4. Step 4: Simplify right side
    394,520.24x = 98,607,927,296.74
  5. Step 5: Solve for x
    x = 98,607,927,296.74/394,520.24
  6. Step 6: Final answer
    x = 249,943.90

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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.