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Finding the Fourth Proportional to 203,214.80, 304,822.20 and 62,987.60

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Solution

The fourth proportional to 203,214.80, 304,822.20 and 62,987.60 is: 94,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,214.80 : 304,822.20 = 62,987.60 : x
  2. Step 2: Convert to fraction form
    203,214.80/304,822.20 = 62,987.60/x
  3. Step 3: Cross multiply
    203,214.80x = 304,822.20 × 62,987.60
  4. Step 4: Simplify right side
    203,214.80x = 19,200,018,804.72
  5. Step 5: Solve for x
    x = 19,200,018,804.72/203,214.80
  6. Step 6: Final answer
    x = 94,481.40

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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.