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Finding the Fourth Proportional to 123.04, 184.32 and 118

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Solution

The fourth proportional to 123.04, 184.32 and 118 is: 176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123.04 : 184.32 = 118 : x
  2. Step 2: Convert to fraction form
    123.04/184.32 = 118/x
  3. Step 3: Cross multiply
    123.04x = 184.32 × 118
  4. Step 4: Simplify right side
    123.04x = 21,749.76
  5. Step 5: Solve for x
    x = 21,749.76/123.04
  6. Step 6: Final answer
    x = 176.77

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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.