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Finding the Fourth Proportional to 112,413.60, 168,620.40 and 107,229.60

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Solution

The fourth proportional to 112,413.60, 168,620.40 and 107,229.60 is: 160,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,413.60 : 168,620.40 = 107,229.60 : x
  2. Step 2: Convert to fraction form
    112,413.60/168,620.40 = 107,229.60/x
  3. Step 3: Cross multiply
    112,413.60x = 168,620.40 × 107,229.60
  4. Step 4: Simplify right side
    112,413.60x = 18,081,098,043.84
  5. Step 5: Solve for x
    x = 18,081,098,043.84/112,413.60
  6. Step 6: Final answer
    x = 160,844.40

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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.