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Finding the Fourth Proportional to 208,928.03, 313,436.99 and 64,830.98

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Solution

The fourth proportional to 208,928.03, 313,436.99 and 64,830.98 is: 97,260.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,928.03 : 313,436.99 = 64,830.98 : x
  2. Step 2: Convert to fraction form
    208,928.03/313,436.99 = 64,830.98/x
  3. Step 3: Cross multiply
    208,928.03x = 313,436.99 × 64,830.98
  4. Step 4: Simplify right side
    208,928.03x = 20,320,428,175.62
  5. Step 5: Solve for x
    x = 20,320,428,175.62/208,928.03
  6. Step 6: Final answer
    x = 97,260.42

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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.