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Finding the Fourth Proportional to 178,443.60, 267,665.40 and 73,208.40

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Solution

The fourth proportional to 178,443.60, 267,665.40 and 73,208.40 is: 109,812.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,443.60 : 267,665.40 = 73,208.40 : x
  2. Step 2: Convert to fraction form
    178,443.60/267,665.40 = 73,208.40/x
  3. Step 3: Cross multiply
    178,443.60x = 267,665.40 × 73,208.40
  4. Step 4: Simplify right side
    178,443.60x = 19,595,355,669.36
  5. Step 5: Solve for x
    x = 19,595,355,669.36/178,443.60
  6. Step 6: Final answer
    x = 109,812.60

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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.