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Finding the Fourth Proportional to 303,950.10, 455,269.05 and 197,661.90

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Solution

The fourth proportional to 303,950.10, 455,269.05 and 197,661.90 is: 296,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,950.10 : 455,269.05 = 197,661.90 : x
  2. Step 2: Convert to fraction form
    303,950.10/455,269.05 = 197,661.90/x
  3. Step 3: Cross multiply
    303,950.10x = 455,269.05 × 197,661.90
  4. Step 4: Simplify right side
    303,950.10x = 89,989,345,434.20
  5. Step 5: Solve for x
    x = 89,989,345,434.20/303,950.10
  6. Step 6: Final answer
    x = 296,066.18

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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.