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Finding the Fourth Proportional to 162.71, 244.00 and 47.13

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Solution

The fourth proportional to 162.71, 244.00 and 47.13 is: 70.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.71 : 244.00 = 47.13 : x
  2. Step 2: Convert to fraction form
    162.71/244.00 = 47.13/x
  3. Step 3: Cross multiply
    162.71x = 244.00 × 47.13
  4. Step 4: Simplify right side
    162.71x = 11,499.60
  5. Step 5: Solve for x
    x = 11,499.60/162.71
  6. Step 6: Final answer
    x = 70.67

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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.