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Finding the Fourth Proportional to 235,647.17, 353,417.49 and 67,163.86

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Solution

The fourth proportional to 235,647.17, 353,417.49 and 67,163.86 is: 100,730.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,647.17 : 353,417.49 = 67,163.86 : x
  2. Step 2: Convert to fraction form
    235,647.17/353,417.49 = 67,163.86/x
  3. Step 3: Cross multiply
    235,647.17x = 353,417.49 × 67,163.86
  4. Step 4: Simplify right side
    235,647.17x = 23,736,881,936.37
  5. Step 5: Solve for x
    x = 23,736,881,936.37/235,647.17
  6. Step 6: Final answer
    x = 100,730.61

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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.