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Finding the Fourth Proportional to 117.94, 176.84 and 60.16

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Solution

The fourth proportional to 117.94, 176.84 and 60.16 is: 90.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.94 : 176.84 = 60.16 : x
  2. Step 2: Convert to fraction form
    117.94/176.84 = 60.16/x
  3. Step 3: Cross multiply
    117.94x = 176.84 × 60.16
  4. Step 4: Simplify right side
    117.94x = 10,638.69
  5. Step 5: Solve for x
    x = 10,638.69/117.94
  6. Step 6: Final answer
    x = 90.20

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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.