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Finding the Fourth Proportional to 228,412.44, 342,651.45 and 70,653.20

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Solution

The fourth proportional to 228,412.44, 342,651.45 and 70,653.20 is: 105,989.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,412.44 : 342,651.45 = 70,653.20 : x
  2. Step 2: Convert to fraction form
    228,412.44/342,651.45 = 70,653.20/x
  3. Step 3: Cross multiply
    228,412.44x = 342,651.45 × 70,653.20
  4. Step 4: Simplify right side
    228,412.44x = 24,209,419,713.88
  5. Step 5: Solve for x
    x = 24,209,419,713.88/228,412.44
  6. Step 6: Final answer
    x = 105,989.94

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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.