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Finding the Fourth Proportional to 195,090.96, 269,223.84 and 105,666.96

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Solution

The fourth proportional to 195,090.96, 269,223.84 and 105,666.96 is: 145,819.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,090.96 : 269,223.84 = 105,666.96 : x
  2. Step 2: Convert to fraction form
    195,090.96/269,223.84 = 105,666.96/x
  3. Step 3: Cross multiply
    195,090.96x = 269,223.84 × 105,666.96
  4. Step 4: Simplify right side
    195,090.96x = 28,448,064,732.33
  5. Step 5: Solve for x
    x = 28,448,064,732.33/195,090.96
  6. Step 6: Final answer
    x = 145,819.49

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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.