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Finding the Fourth Proportional to 355,991.51, 533,919.22 and 106,673.51

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Solution

The fourth proportional to 355,991.51, 533,919.22 and 106,673.51 is: 159,989.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,991.51 : 533,919.22 = 106,673.51 : x
  2. Step 2: Convert to fraction form
    355,991.51/533,919.22 = 106,673.51/x
  3. Step 3: Cross multiply
    355,991.51x = 533,919.22 × 106,673.51
  4. Step 4: Simplify right side
    355,991.51x = 56,955,034,050.90
  5. Step 5: Solve for x
    x = 56,955,034,050.90/355,991.51
  6. Step 6: Final answer
    x = 159,989.87

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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.