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Finding the Fourth Proportional to 269,668.16, 372,143.18 and 148,813

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Solution

The fourth proportional to 269,668.16, 372,143.18 and 148,813 is: 205,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,668.16 : 372,143.18 = 148,813 : x
  2. Step 2: Convert to fraction form
    269,668.16/372,143.18 = 148,813/x
  3. Step 3: Cross multiply
    269,668.16x = 372,143.18 × 148,813
  4. Step 4: Simplify right side
    269,668.16x = 55,379,743,045.34
  5. Step 5: Solve for x
    x = 55,379,743,045.34/269,668.16
  6. Step 6: Final answer
    x = 205,362.56

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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.