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Finding the Fourth Proportional to 99,604.53, 149,453.42 and 49,688.48

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Solution

The fourth proportional to 99,604.53, 149,453.42 and 49,688.48 is: 74,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,604.53 : 149,453.42 = 49,688.48 : x
  2. Step 2: Convert to fraction form
    99,604.53/149,453.42 = 49,688.48/x
  3. Step 3: Cross multiply
    99,604.53x = 149,453.42 × 49,688.48
  4. Step 4: Simplify right side
    99,604.53x = 7,426,113,395.79
  5. Step 5: Solve for x
    x = 7,426,113,395.79/99,604.53
  6. Step 6: Final answer
    x = 74,555.98

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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.