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Finding the Fourth Proportional to 201,903.10, 302,854.65 and 198,015.10

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Solution

The fourth proportional to 201,903.10, 302,854.65 and 198,015.10 is: 297,022.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,903.10 : 302,854.65 = 198,015.10 : x
  2. Step 2: Convert to fraction form
    201,903.10/302,854.65 = 198,015.10/x
  3. Step 3: Cross multiply
    201,903.10x = 302,854.65 × 198,015.10
  4. Step 4: Simplify right side
    201,903.10x = 59,969,793,805.22
  5. Step 5: Solve for x
    x = 59,969,793,805.22/201,903.10
  6. Step 6: Final answer
    x = 297,022.65

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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.