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Finding the Fourth Proportional to 236,413.80, 354,620.70 and 161,764.20

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Solution

The fourth proportional to 236,413.80, 354,620.70 and 161,764.20 is: 242,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,413.80 : 354,620.70 = 161,764.20 : x
  2. Step 2: Convert to fraction form
    236,413.80/354,620.70 = 161,764.20/x
  3. Step 3: Cross multiply
    236,413.80x = 354,620.70 × 161,764.20
  4. Step 4: Simplify right side
    236,413.80x = 57,364,933,838.94
  5. Step 5: Solve for x
    x = 57,364,933,838.94/236,413.80
  6. Step 6: Final answer
    x = 242,646.30

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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.