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Finding the Fourth Proportional to 94,720.96, 130,764.12 and 69,198.67

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Solution

The fourth proportional to 94,720.96, 130,764.12 and 69,198.67 is: 95,530.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,720.96 : 130,764.12 = 69,198.67 : x
  2. Step 2: Convert to fraction form
    94,720.96/130,764.12 = 69,198.67/x
  3. Step 3: Cross multiply
    94,720.96x = 130,764.12 × 69,198.67
  4. Step 4: Simplify right side
    94,720.96x = 9,048,702,533.90
  5. Step 5: Solve for x
    x = 9,048,702,533.90/94,720.96
  6. Step 6: Final answer
    x = 95,530.10

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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.