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Finding the Fourth Proportional to 216,069.40, 323,520.90 and 169,413.40

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Solution

The fourth proportional to 216,069.40, 323,520.90 and 169,413.40 is: 253,662.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,069.40 : 323,520.90 = 169,413.40 : x
  2. Step 2: Convert to fraction form
    216,069.40/323,520.90 = 169,413.40/x
  3. Step 3: Cross multiply
    216,069.40x = 323,520.90 × 169,413.40
  4. Step 4: Simplify right side
    216,069.40x = 54,808,775,640.06
  5. Step 5: Solve for x
    x = 54,808,775,640.06/216,069.40
  6. Step 6: Final answer
    x = 253,662.83

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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.