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Finding the Fourth Proportional to 251,683.77, 377,525.25 and 172,558.11

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Solution

The fourth proportional to 251,683.77, 377,525.25 and 172,558.11 is: 258,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,683.77 : 377,525.25 = 172,558.11 : x
  2. Step 2: Convert to fraction form
    251,683.77/377,525.25 = 172,558.11/x
  3. Step 3: Cross multiply
    251,683.77x = 377,525.25 × 172,558.11
  4. Step 4: Simplify right side
    251,683.77x = 65,145,043,617.28
  5. Step 5: Solve for x
    x = 65,145,043,617.28/251,683.77
  6. Step 6: Final answer
    x = 258,836.89

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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.