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Finding the Fourth Proportional to 146,570.60, 219,683.10 and 76,413.80

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Solution

The fourth proportional to 146,570.60, 219,683.10 and 76,413.80 is: 114,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,570.60 : 219,683.10 = 76,413.80 : x
  2. Step 2: Convert to fraction form
    146,570.60/219,683.10 = 76,413.80/x
  3. Step 3: Cross multiply
    146,570.60x = 219,683.10 × 76,413.80
  4. Step 4: Simplify right side
    146,570.60x = 16,786,820,466.78
  5. Step 5: Solve for x
    x = 16,786,820,466.78/146,570.60
  6. Step 6: Final answer
    x = 114,530.61

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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.