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Finding the Fourth Proportional to 236,487.90, 355,141.45 and 166,855.90

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Solution

The fourth proportional to 236,487.90, 355,141.45 and 166,855.90 is: 250,572.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,487.90 : 355,141.45 = 166,855.90 : x
  2. Step 2: Convert to fraction form
    236,487.90/355,141.45 = 166,855.90/x
  3. Step 3: Cross multiply
    236,487.90x = 355,141.45 × 166,855.90
  4. Step 4: Simplify right side
    236,487.90x = 59,257,446,267.06
  5. Step 5: Solve for x
    x = 59,257,446,267.06/236,487.90
  6. Step 6: Final answer
    x = 250,572.85

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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.