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Finding the Fourth Proportional to 251,502.64, 377,173.88 and 82,991.60

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Solution

The fourth proportional to 251,502.64, 377,173.88 and 82,991.60 is: 124,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,502.64 : 377,173.88 = 82,991.60 : x
  2. Step 2: Convert to fraction form
    251,502.64/377,173.88 = 82,991.60/x
  3. Step 3: Cross multiply
    251,502.64x = 377,173.88 × 82,991.60
  4. Step 4: Simplify right side
    251,502.64x = 31,302,263,779.41
  5. Step 5: Solve for x
    x = 31,302,263,779.41/251,502.64
  6. Step 6: Final answer
    x = 124,460.97

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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.