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Finding the Fourth Proportional to 228,848.78, 343,188.90 and 79,050.62

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Solution

The fourth proportional to 228,848.78, 343,188.90 and 79,050.62 is: 118,546.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,848.78 : 343,188.90 = 79,050.62 : x
  2. Step 2: Convert to fraction form
    228,848.78/343,188.90 = 79,050.62/x
  3. Step 3: Cross multiply
    228,848.78x = 343,188.90 × 79,050.62
  4. Step 4: Simplify right side
    228,848.78x = 27,129,295,322.12
  5. Step 5: Solve for x
    x = 27,129,295,322.12/228,848.78
  6. Step 6: Final answer
    x = 118,546.82

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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.