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Finding the Fourth Proportional to 223,009.20, 334,902.60 and 216,010.80

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Solution

The fourth proportional to 223,009.20, 334,902.60 and 216,010.80 is: 324,392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,009.20 : 334,902.60 = 216,010.80 : x
  2. Step 2: Convert to fraction form
    223,009.20/334,902.60 = 216,010.80/x
  3. Step 3: Cross multiply
    223,009.20x = 334,902.60 × 216,010.80
  4. Step 4: Simplify right side
    223,009.20x = 72,342,578,548.08
  5. Step 5: Solve for x
    x = 72,342,578,548.08/223,009.20
  6. Step 6: Final answer
    x = 324,392.80

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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.