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Finding the Fourth Proportional to 223,897.20, 335,838.60 and 74,144.40

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Solution

The fourth proportional to 223,897.20, 335,838.60 and 74,144.40 is: 111,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,897.20 : 335,838.60 = 74,144.40 : x
  2. Step 2: Convert to fraction form
    223,897.20/335,838.60 = 74,144.40/x
  3. Step 3: Cross multiply
    223,897.20x = 335,838.60 × 74,144.40
  4. Step 4: Simplify right side
    223,897.20x = 24,900,551,493.84
  5. Step 5: Solve for x
    x = 24,900,551,493.84/223,897.20
  6. Step 6: Final answer
    x = 111,214.22

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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.