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Finding the Fourth Proportional to 178,477.28, 267,629.81 and 103,616.27

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Solution

The fourth proportional to 178,477.28, 267,629.81 and 103,616.27 is: 155,374.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,477.28 : 267,629.81 = 103,616.27 : x
  2. Step 2: Convert to fraction form
    178,477.28/267,629.81 = 103,616.27/x
  3. Step 3: Cross multiply
    178,477.28x = 267,629.81 × 103,616.27
  4. Step 4: Simplify right side
    178,477.28x = 27,730,802,804.00
  5. Step 5: Solve for x
    x = 27,730,802,804.00/178,477.28
  6. Step 6: Final answer
    x = 155,374.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.