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Finding the Fourth Proportional to 266,637.33, 399,916.67 and 98,118.51

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Solution

The fourth proportional to 266,637.33, 399,916.67 and 98,118.51 is: 147,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,637.33 : 399,916.67 = 98,118.51 : x
  2. Step 2: Convert to fraction form
    266,637.33/399,916.67 = 98,118.51/x
  3. Step 3: Cross multiply
    266,637.33x = 399,916.67 × 98,118.51
  4. Step 4: Simplify right side
    266,637.33x = 39,239,227,293.97
  5. Step 5: Solve for x
    x = 39,239,227,293.97/266,637.33
  6. Step 6: Final answer
    x = 147,163.29

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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.