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Finding the Fourth Proportional to 303,952.10, 455,272.05 and 197,663.90

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Solution

The fourth proportional to 303,952.10, 455,272.05 and 197,663.90 is: 296,069.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,952.10 : 455,272.05 = 197,663.90 : x
  2. Step 2: Convert to fraction form
    303,952.10/455,272.05 = 197,663.90/x
  3. Step 3: Cross multiply
    303,952.10x = 455,272.05 × 197,663.90
  4. Step 4: Simplify right side
    303,952.10x = 89,990,848,964.00
  5. Step 5: Solve for x
    x = 89,990,848,964.00/303,952.10
  6. Step 6: Final answer
    x = 296,069.18

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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.