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Finding the Fourth Proportional to 208,946.05, 313,302.44 and 68,692.93

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Solution

The fourth proportional to 208,946.05, 313,302.44 and 68,692.93 is: 103,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,946.05 : 313,302.44 = 68,692.93 : x
  2. Step 2: Convert to fraction form
    208,946.05/313,302.44 = 68,692.93/x
  3. Step 3: Cross multiply
    208,946.05x = 313,302.44 × 68,692.93
  4. Step 4: Simplify right side
    208,946.05x = 21,521,662,236.28
  5. Step 5: Solve for x
    x = 21,521,662,236.28/208,946.05
  6. Step 6: Final answer
    x = 103,001.05

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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.