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Finding the Fourth Proportional to 186,760.54, 280,142.76 and 53,640.49

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Solution

The fourth proportional to 186,760.54, 280,142.76 and 53,640.49 is: 80,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,760.54 : 280,142.76 = 53,640.49 : x
  2. Step 2: Convert to fraction form
    186,760.54/280,142.76 = 53,640.49/x
  3. Step 3: Cross multiply
    186,760.54x = 280,142.76 × 53,640.49
  4. Step 4: Simplify right side
    186,760.54x = 15,026,994,916.35
  5. Step 5: Solve for x
    x = 15,026,994,916.35/186,760.54
  6. Step 6: Final answer
    x = 80,461.30

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1.5x scale

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.