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Finding the Fourth Proportional to 92,499.36, 138,749.28 and 22,378.56

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Solution

The fourth proportional to 92,499.36, 138,749.28 and 22,378.56 is: 33,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,499.36 : 138,749.28 = 22,378.56 : x
  2. Step 2: Convert to fraction form
    92,499.36/138,749.28 = 22,378.56/x
  3. Step 3: Cross multiply
    92,499.36x = 138,749.28 × 22,378.56
  4. Step 4: Simplify right side
    92,499.36x = 3,105,009,087.44
  5. Step 5: Solve for x
    x = 3,105,009,087.44/92,499.36
  6. Step 6: Final answer
    x = 33,567.90

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1.5x scale

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.