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Finding the Fourth Proportional to 175.95, 242.89 and 117.04

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Solution

The fourth proportional to 175.95, 242.89 and 117.04 is: 161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.95 : 242.89 = 117.04 : x
  2. Step 2: Convert to fraction form
    175.95/242.89 = 117.04/x
  3. Step 3: Cross multiply
    175.95x = 242.89 × 117.04
  4. Step 4: Simplify right side
    175.95x = 28,427.07
  5. Step 5: Solve for x
    x = 28,427.07/175.95
  6. Step 6: Final answer
    x = 161.57

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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.