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Finding the Fourth Proportional to 202,785, 304,177.50 and 55,041

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Solution

The fourth proportional to 202,785, 304,177.50 and 55,041 is: 82,561.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,785 : 304,177.50 = 55,041 : x
  2. Step 2: Convert to fraction form
    202,785/304,177.50 = 55,041/x
  3. Step 3: Cross multiply
    202,785x = 304,177.50 × 55,041
  4. Step 4: Simplify right side
    202,785x = 16,742,233,777.50
  5. Step 5: Solve for x
    x = 16,742,233,777.50/202,785
  6. Step 6: Final answer
    x = 82,561.50

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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.