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Finding the Fourth Proportional to 567.68, 851.60 and 156.84

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Solution

The fourth proportional to 567.68, 851.60 and 156.84 is: 235.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.68 : 851.60 = 156.84 : x
  2. Step 2: Convert to fraction form
    567.68/851.60 = 156.84/x
  3. Step 3: Cross multiply
    567.68x = 851.60 × 156.84
  4. Step 4: Simplify right side
    567.68x = 133,564.94
  5. Step 5: Solve for x
    x = 133,564.94/567.68
  6. Step 6: Final answer
    x = 235.28

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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.