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Finding the Fourth Proportional to 202,814.48, 304,258.08 and 69,660.20

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Solution

The fourth proportional to 202,814.48, 304,258.08 and 69,660.20 is: 104,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,814.48 : 304,258.08 = 69,660.20 : x
  2. Step 2: Convert to fraction form
    202,814.48/304,258.08 = 69,660.20/x
  3. Step 3: Cross multiply
    202,814.48x = 304,258.08 × 69,660.20
  4. Step 4: Simplify right side
    202,814.48x = 21,194,678,704.42
  5. Step 5: Solve for x
    x = 21,194,678,704.42/202,814.48
  6. Step 6: Final answer
    x = 104,502.79

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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.