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Finding the Fourth Proportional to 318,340.53, 477,458.89 and 93,648.43

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Solution

The fourth proportional to 318,340.53, 477,458.89 and 93,648.43 is: 140,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,340.53 : 477,458.89 = 93,648.43 : x
  2. Step 2: Convert to fraction form
    318,340.53/477,458.89 = 93,648.43/x
  3. Step 3: Cross multiply
    318,340.53x = 477,458.89 × 93,648.43
  4. Step 4: Simplify right side
    318,340.53x = 44,713,275,800.75
  5. Step 5: Solve for x
    x = 44,713,275,800.75/318,340.53
  6. Step 6: Final answer
    x = 140,457.38

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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.