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Finding the Fourth Proportional to 205,496.67, 308,190.99 and 61,368.29

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Solution

The fourth proportional to 205,496.67, 308,190.99 and 61,368.29 is: 92,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,496.67 : 308,190.99 = 61,368.29 : x
  2. Step 2: Convert to fraction form
    205,496.67/308,190.99 = 61,368.29/x
  3. Step 3: Cross multiply
    205,496.67x = 308,190.99 × 61,368.29
  4. Step 4: Simplify right side
    205,496.67x = 18,913,154,243.59
  5. Step 5: Solve for x
    x = 18,913,154,243.59/205,496.67
  6. Step 6: Final answer
    x = 92,036.30

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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.