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Finding the Fourth Proportional to 219,096.36, 328,652.73 and 61,320.69

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Solution

The fourth proportional to 219,096.36, 328,652.73 and 61,320.69 is: 91,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,096.36 : 328,652.73 = 61,320.69 : x
  2. Step 2: Convert to fraction form
    219,096.36/328,652.73 = 61,320.69/x
  3. Step 3: Cross multiply
    219,096.36x = 328,652.73 × 61,320.69
  4. Step 4: Simplify right side
    219,096.36x = 20,153,212,173.98
  5. Step 5: Solve for x
    x = 20,153,212,173.98/219,096.36
  6. Step 6: Final answer
    x = 91,983.33

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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.