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Finding the Fourth Proportional to 318,356.70, 477,483.03 and 93,664.59

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Solution

The fourth proportional to 318,356.70, 477,483.03 and 93,664.59 is: 140,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,356.70 : 477,483.03 = 93,664.59 : x
  2. Step 2: Convert to fraction form
    318,356.70/477,483.03 = 93,664.59/x
  3. Step 3: Cross multiply
    318,356.70x = 477,483.03 × 93,664.59
  4. Step 4: Simplify right side
    318,356.70x = 44,723,252,236.91
  5. Step 5: Solve for x
    x = 44,723,252,236.91/318,356.70
  6. Step 6: Final answer
    x = 140,481.58

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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.