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Finding the Fourth Proportional to 205,966.80, 308,950.20 and 183,805.20

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Solution

The fourth proportional to 205,966.80, 308,950.20 and 183,805.20 is: 275,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,966.80 : 308,950.20 = 183,805.20 : x
  2. Step 2: Convert to fraction form
    205,966.80/308,950.20 = 183,805.20/x
  3. Step 3: Cross multiply
    205,966.80x = 308,950.20 × 183,805.20
  4. Step 4: Simplify right side
    205,966.80x = 56,786,653,301.04
  5. Step 5: Solve for x
    x = 56,786,653,301.04/205,966.80
  6. Step 6: Final answer
    x = 275,707.80

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1.5x scale

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.