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Finding the Fourth Proportional to 220,173.65, 303,841.19 and 119,571.65

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Solution

The fourth proportional to 220,173.65, 303,841.19 and 119,571.65 is: 165,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,173.65 : 303,841.19 = 119,571.65 : x
  2. Step 2: Convert to fraction form
    220,173.65/303,841.19 = 119,571.65/x
  3. Step 3: Cross multiply
    220,173.65x = 303,841.19 × 119,571.65
  4. Step 4: Simplify right side
    220,173.65x = 36,330,792,426.26
  5. Step 5: Solve for x
    x = 36,330,792,426.26/220,173.65
  6. Step 6: Final answer
    x = 165,009.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.