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Finding the Fourth Proportional to 177, 265.52 and 99.92

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Solution

The fourth proportional to 177, 265.52 and 99.92 is: 149.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    177 : 265.52 = 99.92 : x
  2. Step 2: Convert to fraction form
    177/265.52 = 99.92/x
  3. Step 3: Cross multiply
    177x = 265.52 × 99.92
  4. Step 4: Simplify right side
    177x = 26,530.76
  5. Step 5: Solve for x
    x = 26,530.76/177
  6. Step 6: Final answer
    x = 149.89

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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.