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Finding the Fourth Proportional to 186,640.80, 280,544.40 and 183,141.60

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Solution

The fourth proportional to 186,640.80, 280,544.40 and 183,141.60 is: 275,284.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,640.80 : 280,544.40 = 183,141.60 : x
  2. Step 2: Convert to fraction form
    186,640.80/280,544.40 = 183,141.60/x
  3. Step 3: Cross multiply
    186,640.80x = 280,544.40 × 183,141.60
  4. Step 4: Simplify right side
    186,640.80x = 51,379,350,287.04
  5. Step 5: Solve for x
    x = 51,379,350,287.04/186,640.80
  6. Step 6: Final answer
    x = 275,284.67

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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.