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Finding the Fourth Proportional to 185,246.40, 277,869.60 and 66,921.60

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Solution

The fourth proportional to 185,246.40, 277,869.60 and 66,921.60 is: 100,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,246.40 : 277,869.60 = 66,921.60 : x
  2. Step 2: Convert to fraction form
    185,246.40/277,869.60 = 66,921.60/x
  3. Step 3: Cross multiply
    185,246.40x = 277,869.60 × 66,921.60
  4. Step 4: Simplify right side
    185,246.40x = 18,595,478,223.36
  5. Step 5: Solve for x
    x = 18,595,478,223.36/185,246.40
  6. Step 6: Final answer
    x = 100,382.40

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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.