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Finding the Fourth Proportional to 366,954.40, 550,431.60 and 117,661.60

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Solution

The fourth proportional to 366,954.40, 550,431.60 and 117,661.60 is: 176,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,954.40 : 550,431.60 = 117,661.60 : x
  2. Step 2: Convert to fraction form
    366,954.40/550,431.60 = 117,661.60/x
  3. Step 3: Cross multiply
    366,954.40x = 550,431.60 × 117,661.60
  4. Step 4: Simplify right side
    366,954.40x = 64,764,662,746.56
  5. Step 5: Solve for x
    x = 64,764,662,746.56/366,954.40
  6. Step 6: Final answer
    x = 176,492.40

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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.