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Finding the Fourth Proportional to 266,427.09, 399,798.18 and 98,065.62

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Solution

The fourth proportional to 266,427.09, 399,798.18 and 98,065.62 is: 147,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,427.09 : 399,798.18 = 98,065.62 : x
  2. Step 2: Convert to fraction form
    266,427.09/399,798.18 = 98,065.62/x
  3. Step 3: Cross multiply
    266,427.09x = 399,798.18 × 98,065.62
  4. Step 4: Simplify right side
    266,427.09x = 39,206,456,396.57
  5. Step 5: Solve for x
    x = 39,206,456,396.57/266,427.09
  6. Step 6: Final answer
    x = 147,156.42

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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.