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Finding the Fourth Proportional to 351,145.98, 484,580.88 and 198,216.36

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Solution

The fourth proportional to 351,145.98, 484,580.88 and 198,216.36 is: 273,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,145.98 : 484,580.88 = 198,216.36 : x
  2. Step 2: Convert to fraction form
    351,145.98/484,580.88 = 198,216.36/x
  3. Step 3: Cross multiply
    351,145.98x = 484,580.88 × 198,216.36
  4. Step 4: Simplify right side
    351,145.98x = 96,051,858,159.20
  5. Step 5: Solve for x
    x = 96,051,858,159.20/351,145.98
  6. Step 6: Final answer
    x = 273,538.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.