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Finding the Fourth Proportional to 202,068.90, 302,775.30 and 127,054.80

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Solution

The fourth proportional to 202,068.90, 302,775.30 and 127,054.80 is: 190,375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,068.90 : 302,775.30 = 127,054.80 : x
  2. Step 2: Convert to fraction form
    202,068.90/302,775.30 = 127,054.80/x
  3. Step 3: Cross multiply
    202,068.90x = 302,775.30 × 127,054.80
  4. Step 4: Simplify right side
    202,068.90x = 38,469,055,186.44
  5. Step 5: Solve for x
    x = 38,469,055,186.44/202,068.90
  6. Step 6: Final answer
    x = 190,375.93

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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.