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Finding the Fourth Proportional to 103,241.45, 154,829.37 and 70,174.01

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Solution

The fourth proportional to 103,241.45, 154,829.37 and 70,174.01 is: 105,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,241.45 : 154,829.37 = 70,174.01 : x
  2. Step 2: Convert to fraction form
    103,241.45/154,829.37 = 70,174.01/x
  3. Step 3: Cross multiply
    103,241.45x = 154,829.37 × 70,174.01
  4. Step 4: Simplify right side
    103,241.45x = 10,864,997,311.64
  5. Step 5: Solve for x
    x = 10,864,997,311.64/103,241.45
  6. Step 6: Final answer
    x = 105,238.71

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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.