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Finding the Fourth Proportional to 190,676.93, 285,836.31 and 64,228.68

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Solution

The fourth proportional to 190,676.93, 285,836.31 and 64,228.68 is: 96,282.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,676.93 : 285,836.31 = 64,228.68 : x
  2. Step 2: Convert to fraction form
    190,676.93/285,836.31 = 64,228.68/x
  3. Step 3: Cross multiply
    190,676.93x = 285,836.31 × 64,228.68
  4. Step 4: Simplify right side
    190,676.93x = 18,358,888,887.37
  5. Step 5: Solve for x
    x = 18,358,888,887.37/190,676.93
  6. Step 6: Final answer
    x = 96,282.70

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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.