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Finding the Fourth Proportional to 183, 252.54 and 124.92

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Solution

The fourth proportional to 183, 252.54 and 124.92 is: 172.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    183 : 252.54 = 124.92 : x
  2. Step 2: Convert to fraction form
    183/252.54 = 124.92/x
  3. Step 3: Cross multiply
    183x = 252.54 × 124.92
  4. Step 4: Simplify right side
    183x = 31,547.30
  5. Step 5: Solve for x
    x = 31,547.30/183
  6. Step 6: Final answer
    x = 172.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.