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Finding the Fourth Proportional to 101,687.64, 152,460.30 and 73,242.96

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Solution

The fourth proportional to 101,687.64, 152,460.30 and 73,242.96 is: 109,813.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,687.64 : 152,460.30 = 73,242.96 : x
  2. Step 2: Convert to fraction form
    101,687.64/152,460.30 = 73,242.96/x
  3. Step 3: Cross multiply
    101,687.64x = 152,460.30 × 73,242.96
  4. Step 4: Simplify right side
    101,687.64x = 11,166,643,654.49
  5. Step 5: Solve for x
    x = 11,166,643,654.49/101,687.64
  6. Step 6: Final answer
    x = 109,813.19

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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.