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Finding the Fourth Proportional to 172,041.81, 258,062.72 and 53,723.30

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Solution

The fourth proportional to 172,041.81, 258,062.72 and 53,723.30 is: 80,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,041.81 : 258,062.72 = 53,723.30 : x
  2. Step 2: Convert to fraction form
    172,041.81/258,062.72 = 53,723.30/x
  3. Step 3: Cross multiply
    172,041.81x = 258,062.72 × 53,723.30
  4. Step 4: Simplify right side
    172,041.81x = 13,863,979,366.45
  5. Step 5: Solve for x
    x = 13,863,979,366.45/172,041.81
  6. Step 6: Final answer
    x = 80,584.94

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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.