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Finding the Fourth Proportional to 205,977.70, 308,966.55 and 205,977.70

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Solution

The fourth proportional to 205,977.70, 308,966.55 and 205,977.70 is: 308,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,977.70 : 308,966.55 = 205,977.70 : x
  2. Step 2: Convert to fraction form
    205,977.70/308,966.55 = 205,977.70/x
  3. Step 3: Cross multiply
    205,977.70x = 308,966.55 × 205,977.70
  4. Step 4: Simplify right side
    205,977.70x = 63,640,219,345.94
  5. Step 5: Solve for x
    x = 63,640,219,345.94/205,977.70
  6. Step 6: Final answer
    x = 308,966.55

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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.