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Finding the Fourth Proportional to 161,007.70, 241,511.55 and 82,275.70

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Solution

The fourth proportional to 161,007.70, 241,511.55 and 82,275.70 is: 123,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,007.70 : 241,511.55 = 82,275.70 : x
  2. Step 2: Convert to fraction form
    161,007.70/241,511.55 = 82,275.70/x
  3. Step 3: Cross multiply
    161,007.70x = 241,511.55 × 82,275.70
  4. Step 4: Simplify right side
    161,007.70x = 19,870,531,834.34
  5. Step 5: Solve for x
    x = 19,870,531,834.34/161,007.70
  6. Step 6: Final answer
    x = 123,413.55

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1.5x scale

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.