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Finding the Fourth Proportional to 117.13, 175.68 and 56.24

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Solution

The fourth proportional to 117.13, 175.68 and 56.24 is: 84.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.13 : 175.68 = 56.24 : x
  2. Step 2: Convert to fraction form
    117.13/175.68 = 56.24/x
  3. Step 3: Cross multiply
    117.13x = 175.68 × 56.24
  4. Step 4: Simplify right side
    117.13x = 9,880.68
  5. Step 5: Solve for x
    x = 9,880.68/117.13
  6. Step 6: Final answer
    x = 84.36

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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.