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Finding the Fourth Proportional to 172,275.81, 237,721.58 and 103,361.62

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Solution

The fourth proportional to 172,275.81, 237,721.58 and 103,361.62 is: 142,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,275.81 : 237,721.58 = 103,361.62 : x
  2. Step 2: Convert to fraction form
    172,275.81/237,721.58 = 103,361.62/x
  3. Step 3: Cross multiply
    172,275.81x = 237,721.58 × 103,361.62
  4. Step 4: Simplify right side
    172,275.81x = 24,571,285,912.34
  5. Step 5: Solve for x
    x = 24,571,285,912.34/172,275.81
  6. Step 6: Final answer
    x = 142,627.60

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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.