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Finding the Fourth Proportional to 567.81, 851.73 and 156.93

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Solution

The fourth proportional to 567.81, 851.73 and 156.93 is: 235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.81 : 851.73 = 156.93 : x
  2. Step 2: Convert to fraction form
    567.81/851.73 = 156.93/x
  3. Step 3: Cross multiply
    567.81x = 851.73 × 156.93
  4. Step 4: Simplify right side
    567.81x = 133,661.99
  5. Step 5: Solve for x
    x = 133,661.99/567.81
  6. Step 6: Final answer
    x = 235.40

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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.