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Finding the Fourth Proportional to 84,882.42, 117,141.44 and 47,156.67

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Solution

The fourth proportional to 84,882.42, 117,141.44 and 47,156.67 is: 65,078.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,882.42 : 117,141.44 = 47,156.67 : x
  2. Step 2: Convert to fraction form
    84,882.42/117,141.44 = 47,156.67/x
  3. Step 3: Cross multiply
    84,882.42x = 117,141.44 × 47,156.67
  4. Step 4: Simplify right side
    84,882.42x = 5,523,999,993.62
  5. Step 5: Solve for x
    x = 5,523,999,993.62/84,882.42
  6. Step 6: Final answer
    x = 65,078.26

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1.5x scale

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.