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Finding the Fourth Proportional to 117.93, 176.76 and 49.41

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Solution

The fourth proportional to 117.93, 176.76 and 49.41 is: 74.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.93 : 176.76 = 49.41 : x
  2. Step 2: Convert to fraction form
    117.93/176.76 = 49.41/x
  3. Step 3: Cross multiply
    117.93x = 176.76 × 49.41
  4. Step 4: Simplify right side
    117.93x = 8,733.71
  5. Step 5: Solve for x
    x = 8,733.71/117.93
  6. Step 6: Final answer
    x = 74.06

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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.