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Finding the Fourth Proportional to 364,047.20, 546,070.80 and 206,583.20

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Solution

The fourth proportional to 364,047.20, 546,070.80 and 206,583.20 is: 309,874.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,047.20 : 546,070.80 = 206,583.20 : x
  2. Step 2: Convert to fraction form
    364,047.20/546,070.80 = 206,583.20/x
  3. Step 3: Cross multiply
    364,047.20x = 546,070.80 × 206,583.20
  4. Step 4: Simplify right side
    364,047.20x = 112,809,053,290.56
  5. Step 5: Solve for x
    x = 112,809,053,290.56/364,047.20
  6. Step 6: Final answer
    x = 309,874.80

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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.