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Finding the Fourth Proportional to 150,413.44, 207,592.32 and 86,738.56

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Solution

The fourth proportional to 150,413.44, 207,592.32 and 86,738.56 is: 119,711.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,413.44 : 207,592.32 = 86,738.56 : x
  2. Step 2: Convert to fraction form
    150,413.44/207,592.32 = 86,738.56/x
  3. Step 3: Cross multiply
    150,413.44x = 207,592.32 × 86,738.56
  4. Step 4: Simplify right side
    150,413.44x = 18,006,258,903.86
  5. Step 5: Solve for x
    x = 18,006,258,903.86/150,413.44
  6. Step 6: Final answer
    x = 119,711.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.