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Finding the Fourth Proportional to 228,564.76, 342,847.20 and 78,847.96

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Solution

The fourth proportional to 228,564.76, 342,847.20 and 78,847.96 is: 118,271.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,564.76 : 342,847.20 = 78,847.96 : x
  2. Step 2: Convert to fraction form
    228,564.76/342,847.20 = 78,847.96/x
  3. Step 3: Cross multiply
    228,564.76x = 342,847.20 × 78,847.96
  4. Step 4: Simplify right side
    228,564.76x = 27,032,802,311.71
  5. Step 5: Solve for x
    x = 27,032,802,311.71/228,564.76
  6. Step 6: Final answer
    x = 118,271.96

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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.