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Finding the Fourth Proportional to 269,672.90, 372,141.74 and 148,812.59

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Solution

The fourth proportional to 269,672.90, 372,141.74 and 148,812.59 is: 205,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,672.90 : 372,141.74 = 148,812.59 : x
  2. Step 2: Convert to fraction form
    269,672.90/372,141.74 = 148,812.59/x
  3. Step 3: Cross multiply
    269,672.90x = 372,141.74 × 148,812.59
  4. Step 4: Simplify right side
    269,672.90x = 55,379,377,478.89
  5. Step 5: Solve for x
    x = 55,379,377,478.89/269,672.90
  6. Step 6: Final answer
    x = 205,357.60

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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.