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Finding the Fourth Proportional to 171,762.73, 257,519.53 and 115,463.19

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Solution

The fourth proportional to 171,762.73, 257,519.53 and 115,463.19 is: 173,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,762.73 : 257,519.53 = 115,463.19 : x
  2. Step 2: Convert to fraction form
    171,762.73/257,519.53 = 115,463.19/x
  3. Step 3: Cross multiply
    171,762.73x = 257,519.53 × 115,463.19
  4. Step 4: Simplify right side
    171,762.73x = 29,734,026,421.10
  5. Step 5: Solve for x
    x = 29,734,026,421.10/171,762.73
  6. Step 6: Final answer
    x = 173,111.05

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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.