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Finding the Fourth Proportional to 110,378.55, 165,592.52 and 40,257.87

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Solution

The fourth proportional to 110,378.55, 165,592.52 and 40,257.87 is: 60,395.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,378.55 : 165,592.52 = 40,257.87 : x
  2. Step 2: Convert to fraction form
    110,378.55/165,592.52 = 40,257.87/x
  3. Step 3: Cross multiply
    110,378.55x = 165,592.52 × 40,257.87
  4. Step 4: Simplify right side
    110,378.55x = 6,666,401,941.84
  5. Step 5: Solve for x
    x = 6,666,401,941.84/110,378.55
  6. Step 6: Final answer
    x = 60,395.81

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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.