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Finding the Fourth Proportional to 567.96, 851.80 and 156.99

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Solution

The fourth proportional to 567.96, 851.80 and 156.99 is: 235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.96 : 851.80 = 156.99 : x
  2. Step 2: Convert to fraction form
    567.96/851.80 = 156.99/x
  3. Step 3: Cross multiply
    567.96x = 851.80 × 156.99
  4. Step 4: Simplify right side
    567.96x = 133,724.08
  5. Step 5: Solve for x
    x = 133,724.08/567.96
  6. Step 6: Final answer
    x = 235.45

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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.