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Finding the Fourth Proportional to 336,693.12, 505,041.12 and 100,038

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Solution

The fourth proportional to 336,693.12, 505,041.12 and 100,038 is: 150,057.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,693.12 : 505,041.12 = 100,038 : x
  2. Step 2: Convert to fraction form
    336,693.12/505,041.12 = 100,038/x
  3. Step 3: Cross multiply
    336,693.12x = 505,041.12 × 100,038
  4. Step 4: Simplify right side
    336,693.12x = 50,523,303,562.56
  5. Step 5: Solve for x
    x = 50,523,303,562.56/336,693.12
  6. Step 6: Final answer
    x = 150,057.43

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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.