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Finding the Fourth Proportional to 303,666.56, 455,776.29 and 161,631.14

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Solution

The fourth proportional to 303,666.56, 455,776.29 and 161,631.14 is: 242,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,666.56 : 455,776.29 = 161,631.14 : x
  2. Step 2: Convert to fraction form
    303,666.56/455,776.29 = 161,631.14/x
  3. Step 3: Cross multiply
    303,666.56x = 455,776.29 × 161,631.14
  4. Step 4: Simplify right side
    303,666.56x = 73,667,639,058.79
  5. Step 5: Solve for x
    x = 73,667,639,058.79/303,666.56
  6. Step 6: Final answer
    x = 242,593.85

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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.