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Finding the Fourth Proportional to 117,632.80, 176,449.20 and 104,413.60

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Solution

The fourth proportional to 117,632.80, 176,449.20 and 104,413.60 is: 156,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,632.80 : 176,449.20 = 104,413.60 : x
  2. Step 2: Convert to fraction form
    117,632.80/176,449.20 = 104,413.60/x
  3. Step 3: Cross multiply
    117,632.80x = 176,449.20 × 104,413.60
  4. Step 4: Simplify right side
    117,632.80x = 18,423,696,189.12
  5. Step 5: Solve for x
    x = 18,423,696,189.12/117,632.80
  6. Step 6: Final answer
    x = 156,620.40

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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.