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Finding the Fourth Proportional to 215,063.94, 296,755.70 and 123,168.92

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Solution

The fourth proportional to 215,063.94, 296,755.70 and 123,168.92 is: 169,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,063.94 : 296,755.70 = 123,168.92 : x
  2. Step 2: Convert to fraction form
    215,063.94/296,755.70 = 123,168.92/x
  3. Step 3: Cross multiply
    215,063.94x = 296,755.70 × 123,168.92
  4. Step 4: Simplify right side
    215,063.94x = 36,551,079,072.84
  5. Step 5: Solve for x
    x = 36,551,079,072.84/215,063.94
  6. Step 6: Final answer
    x = 169,954.48

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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.