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Finding the Fourth Proportional to 99,655.10, 149,503.94 and 36,474.94

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Solution

The fourth proportional to 99,655.10, 149,503.94 and 36,474.94 is: 54,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,655.10 : 149,503.94 = 36,474.94 : x
  2. Step 2: Convert to fraction form
    99,655.10/149,503.94 = 36,474.94/x
  3. Step 3: Cross multiply
    99,655.10x = 149,503.94 × 36,474.94
  4. Step 4: Simplify right side
    99,655.10x = 5,453,147,241.26
  5. Step 5: Solve for x
    x = 5,453,147,241.26/99,655.10
  6. Step 6: Final answer
    x = 54,720.20

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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.