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Finding the Fourth Proportional to 469,979.80, 705,058.98 and 154,527.64

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Solution

The fourth proportional to 469,979.80, 705,058.98 and 154,527.64 is: 231,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,979.80 : 705,058.98 = 154,527.64 : x
  2. Step 2: Convert to fraction form
    469,979.80/705,058.98 = 154,527.64/x
  3. Step 3: Cross multiply
    469,979.80x = 705,058.98 × 154,527.64
  4. Step 4: Simplify right side
    469,979.80x = 108,951,100,240.21
  5. Step 5: Solve for x
    x = 108,951,100,240.21/469,979.80
  6. Step 6: Final answer
    x = 231,820.81

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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.