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Finding the Fourth Proportional to 228,693.87, 343,074.06 and 70,935.03

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Solution

The fourth proportional to 228,693.87, 343,074.06 and 70,935.03 is: 106,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,693.87 : 343,074.06 = 70,935.03 : x
  2. Step 2: Convert to fraction form
    228,693.87/343,074.06 = 70,935.03/x
  3. Step 3: Cross multiply
    228,693.87x = 343,074.06 × 70,935.03
  4. Step 4: Simplify right side
    228,693.87x = 24,335,968,738.32
  5. Step 5: Solve for x
    x = 24,335,968,738.32/228,693.87
  6. Step 6: Final answer
    x = 106,412.86

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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.