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Finding the Fourth Proportional to 171,457.96, 257,083.26 and 115,885.48

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Solution

The fourth proportional to 171,457.96, 257,083.26 and 115,885.48 is: 173,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,457.96 : 257,083.26 = 115,885.48 : x
  2. Step 2: Convert to fraction form
    171,457.96/257,083.26 = 115,885.48/x
  3. Step 3: Cross multiply
    171,457.96x = 257,083.26 × 115,885.48
  4. Step 4: Simplify right side
    171,457.96x = 29,792,216,985.06
  5. Step 5: Solve for x
    x = 29,792,216,985.06/171,457.96
  6. Step 6: Final answer
    x = 173,758.14

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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.