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Finding the Fourth Proportional to 90,920.66, 136,413.86 and 46,568.30

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Solution

The fourth proportional to 90,920.66, 136,413.86 and 46,568.30 is: 69,869.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,920.66 : 136,413.86 = 46,568.30 : x
  2. Step 2: Convert to fraction form
    90,920.66/136,413.86 = 46,568.30/x
  3. Step 3: Cross multiply
    90,920.66x = 136,413.86 × 46,568.30
  4. Step 4: Simplify right side
    90,920.66x = 6,352,560,641.73
  5. Step 5: Solve for x
    x = 6,352,560,641.73/90,920.66
  6. Step 6: Final answer
    x = 69,869.28

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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.