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Finding the Fourth Proportional to 307,372.67, 424,176.14 and 171,415.22

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Solution

The fourth proportional to 307,372.67, 424,176.14 and 171,415.22 is: 236,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,372.67 : 424,176.14 = 171,415.22 : x
  2. Step 2: Convert to fraction form
    307,372.67/424,176.14 = 171,415.22/x
  3. Step 3: Cross multiply
    307,372.67x = 424,176.14 × 171,415.22
  4. Step 4: Simplify right side
    307,372.67x = 72,710,244,664.51
  5. Step 5: Solve for x
    x = 72,710,244,664.51/307,372.67
  6. Step 6: Final answer
    x = 236,554.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.