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Finding the Fourth Proportional to 216,346.80, 324,520.20 and 123,034.80

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Solution

The fourth proportional to 216,346.80, 324,520.20 and 123,034.80 is: 184,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,346.80 : 324,520.20 = 123,034.80 : x
  2. Step 2: Convert to fraction form
    216,346.80/324,520.20 = 123,034.80/x
  3. Step 3: Cross multiply
    216,346.80x = 324,520.20 × 123,034.80
  4. Step 4: Simplify right side
    216,346.80x = 39,927,277,902.96
  5. Step 5: Solve for x
    x = 39,927,277,902.96/216,346.80
  6. Step 6: Final answer
    x = 184,552.20

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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.