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Finding the Fourth Proportional to 366,485.51, 548,979.89 and 188,618.85

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Solution

The fourth proportional to 366,485.51, 548,979.89 and 188,618.85 is: 282,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,485.51 : 548,979.89 = 188,618.85 : x
  2. Step 2: Convert to fraction form
    366,485.51/548,979.89 = 188,618.85/x
  3. Step 3: Cross multiply
    366,485.51x = 548,979.89 × 188,618.85
  4. Step 4: Simplify right side
    366,485.51x = 103,547,951,836.93
  5. Step 5: Solve for x
    x = 103,547,951,836.93/366,485.51
  6. Step 6: Final answer
    x = 282,543.10

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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.