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Finding the Fourth Proportional to 178,441.60, 267,662.40 and 73,206.40

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Solution

The fourth proportional to 178,441.60, 267,662.40 and 73,206.40 is: 109,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,441.60 : 267,662.40 = 73,206.40 : x
  2. Step 2: Convert to fraction form
    178,441.60/267,662.40 = 73,206.40/x
  3. Step 3: Cross multiply
    178,441.60x = 267,662.40 × 73,206.40
  4. Step 4: Simplify right side
    178,441.60x = 19,594,600,719.36
  5. Step 5: Solve for x
    x = 19,594,600,719.36/178,441.60
  6. Step 6: Final answer
    x = 109,809.60

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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.