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Finding the Fourth Proportional to 216,166.80, 323,616.60 and 153,958.80

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Solution

The fourth proportional to 216,166.80, 323,616.60 and 153,958.80 is: 230,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,166.80 : 323,616.60 = 153,958.80 : x
  2. Step 2: Convert to fraction form
    216,166.80/323,616.60 = 153,958.80/x
  3. Step 3: Cross multiply
    216,166.80x = 323,616.60 × 153,958.80
  4. Step 4: Simplify right side
    216,166.80x = 49,823,623,396.08
  5. Step 5: Solve for x
    x = 49,823,623,396.08/216,166.80
  6. Step 6: Final answer
    x = 230,486.94

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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.