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Finding the Fourth Proportional to 65,017, 97,556.52 and 45,057.36

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Solution

The fourth proportional to 65,017, 97,556.52 and 45,057.36 is: 67,607.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,017 : 97,556.52 = 45,057.36 : x
  2. Step 2: Convert to fraction form
    65,017/97,556.52 = 45,057.36/x
  3. Step 3: Cross multiply
    65,017x = 97,556.52 × 45,057.36
  4. Step 4: Simplify right side
    65,017x = 4,395,639,241.99
  5. Step 5: Solve for x
    x = 4,395,639,241.99/65,017
  6. Step 6: Final answer
    x = 67,607.54

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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.