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Finding the Fourth Proportional to 205,763.60, 308,645.40 and 183,456.20

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Solution

The fourth proportional to 205,763.60, 308,645.40 and 183,456.20 is: 275,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,763.60 : 308,645.40 = 183,456.20 : x
  2. Step 2: Convert to fraction form
    205,763.60/308,645.40 = 183,456.20/x
  3. Step 3: Cross multiply
    205,763.60x = 308,645.40 × 183,456.20
  4. Step 4: Simplify right side
    205,763.60x = 56,622,912,231.48
  5. Step 5: Solve for x
    x = 56,622,912,231.48/205,763.60
  6. Step 6: Final answer
    x = 275,184.30

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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.