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Finding the Fourth Proportional to 159,609.36, 239,413.44 and 47,290.56

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Solution

The fourth proportional to 159,609.36, 239,413.44 and 47,290.56 is: 70,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,609.36 : 239,413.44 = 47,290.56 : x
  2. Step 2: Convert to fraction form
    159,609.36/239,413.44 = 47,290.56/x
  3. Step 3: Cross multiply
    159,609.36x = 239,413.44 × 47,290.56
  4. Step 4: Simplify right side
    159,609.36x = 11,321,995,649.13
  5. Step 5: Solve for x
    x = 11,321,995,649.13/159,609.36
  6. Step 6: Final answer
    x = 70,935.66

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1.5x scale

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.