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Finding the Fourth Proportional to 78,597.54, 108,257.92 and 60,413.45

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Solution

The fourth proportional to 78,597.54, 108,257.92 and 60,413.45 is: 83,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,597.54 : 108,257.92 = 60,413.45 : x
  2. Step 2: Convert to fraction form
    78,597.54/108,257.92 = 60,413.45/x
  3. Step 3: Cross multiply
    78,597.54x = 108,257.92 × 60,413.45
  4. Step 4: Simplify right side
    78,597.54x = 6,540,233,744.70
  5. Step 5: Solve for x
    x = 6,540,233,744.70/78,597.54
  6. Step 6: Final answer
    x = 83,211.69

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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.