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Finding the Fourth Proportional to 99,370.56, 149,055.84 and 25,498.56

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Solution

The fourth proportional to 99,370.56, 149,055.84 and 25,498.56 is: 38,247.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,370.56 : 149,055.84 = 25,498.56 : x
  2. Step 2: Convert to fraction form
    99,370.56/149,055.84 = 25,498.56/x
  3. Step 3: Cross multiply
    99,370.56x = 149,055.84 × 25,498.56
  4. Step 4: Simplify right side
    99,370.56x = 3,800,709,279.59
  5. Step 5: Solve for x
    x = 3,800,709,279.59/99,370.56
  6. Step 6: Final answer
    x = 38,247.84

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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.