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Finding the Fourth Proportional to 365,905.68, 548,639.82 and 141,079.68

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Solution

The fourth proportional to 365,905.68, 548,639.82 and 141,079.68 is: 211,535.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,905.68 : 548,639.82 = 141,079.68 : x
  2. Step 2: Convert to fraction form
    365,905.68/548,639.82 = 141,079.68/x
  3. Step 3: Cross multiply
    365,905.68x = 548,639.82 × 141,079.68
  4. Step 4: Simplify right side
    365,905.68x = 77,401,930,240.86
  5. Step 5: Solve for x
    x = 77,401,930,240.86/365,905.68
  6. Step 6: Final answer
    x = 211,535.20

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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.