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Finding the Fourth Proportional to 357,936.94, 536,905.54 and 105,217.43

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Solution

The fourth proportional to 357,936.94, 536,905.54 and 105,217.43 is: 157,826.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,936.94 : 536,905.54 = 105,217.43 : x
  2. Step 2: Convert to fraction form
    357,936.94/536,905.54 = 105,217.43/x
  3. Step 3: Cross multiply
    357,936.94x = 536,905.54 × 105,217.43
  4. Step 4: Simplify right side
    357,936.94x = 56,491,821,071.56
  5. Step 5: Solve for x
    x = 56,491,821,071.56/357,936.94
  6. Step 6: Final answer
    x = 157,826.19

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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.