Home / 99,576.05-149,273.70-49,671.45

Finding the Fourth Proportional to 99,576.05, 149,273.70 and 49,671.45

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Solution

The fourth proportional to 99,576.05, 149,273.70 and 49,671.45 is: 74,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,576.05 : 149,273.70 = 49,671.45 : x
  2. Step 2: Convert to fraction form
    99,576.05/149,273.70 = 49,671.45/x
  3. Step 3: Cross multiply
    99,576.05x = 149,273.70 × 49,671.45
  4. Step 4: Simplify right side
    99,576.05x = 7,414,641,125.87
  5. Step 5: Solve for x
    x = 7,414,641,125.87/99,576.05
  6. Step 6: Final answer
    x = 74,462.10

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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.