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Finding the Fourth Proportional to 186,680.40, 280,020.60 and 62,021.40

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Solution

The fourth proportional to 186,680.40, 280,020.60 and 62,021.40 is: 93,032.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,680.40 : 280,020.60 = 62,021.40 : x
  2. Step 2: Convert to fraction form
    186,680.40/280,020.60 = 62,021.40/x
  3. Step 3: Cross multiply
    186,680.40x = 280,020.60 × 62,021.40
  4. Step 4: Simplify right side
    186,680.40x = 17,367,269,640.84
  5. Step 5: Solve for x
    x = 17,367,269,640.84/186,680.40
  6. Step 6: Final answer
    x = 93,032.10

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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.