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Finding the Fourth Proportional to 101,072.79, 151,641.99 and 48,486.39

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Solution

The fourth proportional to 101,072.79, 151,641.99 and 48,486.39 is: 72,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,072.79 : 151,641.99 = 48,486.39 : x
  2. Step 2: Convert to fraction form
    101,072.79/151,641.99 = 48,486.39/x
  3. Step 3: Cross multiply
    101,072.79x = 151,641.99 × 48,486.39
  4. Step 4: Simplify right side
    101,072.79x = 7,352,572,667.52
  5. Step 5: Solve for x
    x = 7,352,572,667.52/101,072.79
  6. Step 6: Final answer
    x = 72,745.32

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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.