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Finding the Fourth Proportional to 202,145.10, 303,217.65 and 192,303.60

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Solution

The fourth proportional to 202,145.10, 303,217.65 and 192,303.60 is: 288,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,145.10 : 303,217.65 = 192,303.60 : x
  2. Step 2: Convert to fraction form
    202,145.10/303,217.65 = 192,303.60/x
  3. Step 3: Cross multiply
    202,145.10x = 303,217.65 × 192,303.60
  4. Step 4: Simplify right side
    202,145.10x = 58,309,845,678.54
  5. Step 5: Solve for x
    x = 58,309,845,678.54/202,145.10
  6. Step 6: Final answer
    x = 288,455.40

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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.