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Finding the Fourth Proportional to 245,117.52, 338,391.36 and 164,966.40

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Solution

The fourth proportional to 245,117.52, 338,391.36 and 164,966.40 is: 227,740.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,117.52 : 338,391.36 = 164,966.40 : x
  2. Step 2: Convert to fraction form
    245,117.52/338,391.36 = 164,966.40/x
  3. Step 3: Cross multiply
    245,117.52x = 338,391.36 × 164,966.40
  4. Step 4: Simplify right side
    245,117.52x = 55,823,204,450.30
  5. Step 5: Solve for x
    x = 55,823,204,450.30/245,117.52
  6. Step 6: Final answer
    x = 227,740.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.