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Finding the Fourth Proportional to 228,813.60, 343,252.80 and 71,025.60

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Solution

The fourth proportional to 228,813.60, 343,252.80 and 71,025.60 is: 106,548.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,813.60 : 343,252.80 = 71,025.60 : x
  2. Step 2: Convert to fraction form
    228,813.60/343,252.80 = 71,025.60/x
  3. Step 3: Cross multiply
    228,813.60x = 343,252.80 × 71,025.60
  4. Step 4: Simplify right side
    228,813.60x = 24,379,736,071.68
  5. Step 5: Solve for x
    x = 24,379,736,071.68/228,813.60
  6. Step 6: Final answer
    x = 106,548.46

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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.