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Finding the Fourth Proportional to 101,970.20, 152,958.31 and 48,667.79

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Solution

The fourth proportional to 101,970.20, 152,958.31 and 48,667.79 is: 73,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,970.20 : 152,958.31 = 48,667.79 : x
  2. Step 2: Convert to fraction form
    101,970.20/152,958.31 = 48,667.79/x
  3. Step 3: Cross multiply
    101,970.20x = 152,958.31 × 48,667.79
  4. Step 4: Simplify right side
    101,970.20x = 7,444,143,413.90
  5. Step 5: Solve for x
    x = 7,444,143,413.90/101,970.20
  6. Step 6: Final answer
    x = 73,003.13

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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.