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Finding the Fourth Proportional to 287,772.93, 397,119.99 and 166,925.37

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Solution

The fourth proportional to 287,772.93, 397,119.99 and 166,925.37 is: 230,353.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,772.93 : 397,119.99 = 166,925.37 : x
  2. Step 2: Convert to fraction form
    287,772.93/397,119.99 = 166,925.37/x
  3. Step 3: Cross multiply
    287,772.93x = 397,119.99 × 166,925.37
  4. Step 4: Simplify right side
    287,772.93x = 66,289,401,265.15
  5. Step 5: Solve for x
    x = 66,289,401,265.15/287,772.93
  6. Step 6: Final answer
    x = 230,353.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.