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Finding the Fourth Proportional to 269,802.56, 372,377.76 and 155,148.32

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Solution

The fourth proportional to 269,802.56, 372,377.76 and 155,148.32 is: 214,133.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,802.56 : 372,377.76 = 155,148.32 : x
  2. Step 2: Convert to fraction form
    269,802.56/372,377.76 = 155,148.32/x
  3. Step 3: Cross multiply
    269,802.56x = 372,377.76 × 155,148.32
  4. Step 4: Simplify right side
    269,802.56x = 57,773,783,869.36
  5. Step 5: Solve for x
    x = 57,773,783,869.36/269,802.56
  6. Step 6: Final answer
    x = 214,133.56

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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.