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Finding the Fourth Proportional to 621,846.64, 932,769.96 and 172,567.54

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Solution

The fourth proportional to 621,846.64, 932,769.96 and 172,567.54 is: 258,851.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,846.64 : 932,769.96 = 172,567.54 : x
  2. Step 2: Convert to fraction form
    621,846.64/932,769.96 = 172,567.54/x
  3. Step 3: Cross multiply
    621,846.64x = 932,769.96 × 172,567.54
  4. Step 4: Simplify right side
    621,846.64x = 160,965,817,383.10
  5. Step 5: Solve for x
    x = 160,965,817,383.10/621,846.64
  6. Step 6: Final answer
    x = 258,851.31

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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.