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Finding the Fourth Proportional to 357,276.81, 535,218.60 and 199,028.73

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Solution

The fourth proportional to 357,276.81, 535,218.60 and 199,028.73 is: 298,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,276.81 : 535,218.60 = 199,028.73 : x
  2. Step 2: Convert to fraction form
    357,276.81/535,218.60 = 199,028.73/x
  3. Step 3: Cross multiply
    357,276.81x = 535,218.60 × 199,028.73
  4. Step 4: Simplify right side
    357,276.81x = 106,523,878,230.38
  5. Step 5: Solve for x
    x = 106,523,878,230.38/357,276.81
  6. Step 6: Final answer
    x = 298,155.03

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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.