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Finding the Fourth Proportional to 186,711.17, 280,108.39 and 53,581.05

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Solution

The fourth proportional to 186,711.17, 280,108.39 and 53,581.05 is: 80,383.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,711.17 : 280,108.39 = 53,581.05 : x
  2. Step 2: Convert to fraction form
    186,711.17/280,108.39 = 53,581.05/x
  3. Step 3: Cross multiply
    186,711.17x = 280,108.39 × 53,581.05
  4. Step 4: Simplify right side
    186,711.17x = 15,008,501,650.01
  5. Step 5: Solve for x
    x = 15,008,501,650.01/186,711.17
  6. Step 6: Final answer
    x = 80,383.52

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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.