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Finding the Fourth Proportional to 131,325.60, 196,930.80 and 52,413.60

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Solution

The fourth proportional to 131,325.60, 196,930.80 and 52,413.60 is: 78,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,325.60 : 196,930.80 = 52,413.60 : x
  2. Step 2: Convert to fraction form
    131,325.60/196,930.80 = 52,413.60/x
  3. Step 3: Cross multiply
    131,325.60x = 196,930.80 × 52,413.60
  4. Step 4: Simplify right side
    131,325.60x = 10,321,852,178.88
  5. Step 5: Solve for x
    x = 10,321,852,178.88/131,325.60
  6. Step 6: Final answer
    x = 78,597.41

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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.