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Finding the Fourth Proportional to 186,945.80, 280,418.70 and 62,286.80

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Solution

The fourth proportional to 186,945.80, 280,418.70 and 62,286.80 is: 93,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,945.80 : 280,418.70 = 62,286.80 : x
  2. Step 2: Convert to fraction form
    186,945.80/280,418.70 = 62,286.80/x
  3. Step 3: Cross multiply
    186,945.80x = 280,418.70 × 62,286.80
  4. Step 4: Simplify right side
    186,945.80x = 17,466,383,483.16
  5. Step 5: Solve for x
    x = 17,466,383,483.16/186,945.80
  6. Step 6: Final answer
    x = 93,430.20

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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.