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Finding the Fourth Proportional to 161,558.69, 242,439.08 and 61,727.40

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Solution

The fourth proportional to 161,558.69, 242,439.08 and 61,727.40 is: 92,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,558.69 : 242,439.08 = 61,727.40 : x
  2. Step 2: Convert to fraction form
    161,558.69/242,439.08 = 61,727.40/x
  3. Step 3: Cross multiply
    161,558.69x = 242,439.08 × 61,727.40
  4. Step 4: Simplify right side
    161,558.69x = 14,965,133,758.16
  5. Step 5: Solve for x
    x = 14,965,133,758.16/161,558.69
  6. Step 6: Final answer
    x = 92,629.71

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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.