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Finding the Fourth Proportional to 228,575.79, 342,886.23 and 78,796.37

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Solution

The fourth proportional to 228,575.79, 342,886.23 and 78,796.37 is: 118,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,575.79 : 342,886.23 = 78,796.37 : x
  2. Step 2: Convert to fraction form
    228,575.79/342,886.23 = 78,796.37/x
  3. Step 3: Cross multiply
    228,575.79x = 342,886.23 × 78,796.37
  4. Step 4: Simplify right side
    228,575.79x = 27,018,191,104.20
  5. Step 5: Solve for x
    x = 27,018,191,104.20/228,575.79
  6. Step 6: Final answer
    x = 118,202.33

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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.