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Finding the Fourth Proportional to 567.63, 851.34 and 156.83

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Solution

The fourth proportional to 567.63, 851.34 and 156.83 is: 235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.63 : 851.34 = 156.83 : x
  2. Step 2: Convert to fraction form
    567.63/851.34 = 156.83/x
  3. Step 3: Cross multiply
    567.63x = 851.34 × 156.83
  4. Step 4: Simplify right side
    567.63x = 133,511.40
  5. Step 5: Solve for x
    x = 133,511.40/567.63
  6. Step 6: Final answer
    x = 235.21

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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.