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Finding the Fourth Proportional to 269,673.65, 372,142.78 and 148,813.34

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Solution

The fourth proportional to 269,673.65, 372,142.78 and 148,813.34 is: 205,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,673.65 : 372,142.78 = 148,813.34 : x
  2. Step 2: Convert to fraction form
    269,673.65/372,142.78 = 148,813.34/x
  3. Step 3: Cross multiply
    269,673.65x = 372,142.78 × 148,813.34
  4. Step 4: Simplify right side
    269,673.65x = 55,379,810,607.01
  5. Step 5: Solve for x
    x = 55,379,810,607.01/269,673.65
  6. Step 6: Final answer
    x = 205,358.63

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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.