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Finding the Fourth Proportional to 228,573.98, 342,883.50 and 78,794.56

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Solution

The fourth proportional to 228,573.98, 342,883.50 and 78,794.56 is: 118,199.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,573.98 : 342,883.50 = 78,794.56 : x
  2. Step 2: Convert to fraction form
    228,573.98/342,883.50 = 78,794.56/x
  3. Step 3: Cross multiply
    228,573.98x = 342,883.50 × 78,794.56
  4. Step 4: Simplify right side
    228,573.98x = 27,017,354,513.76
  5. Step 5: Solve for x
    x = 27,017,354,513.76/228,573.98
  6. Step 6: Final answer
    x = 118,199.61

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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.