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Finding the Fourth Proportional to 110,485.80, 165,752.70 and 40,365

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Solution

The fourth proportional to 110,485.80, 165,752.70 and 40,365 is: 60,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,485.80 : 165,752.70 = 40,365 : x
  2. Step 2: Convert to fraction form
    110,485.80/165,752.70 = 40,365/x
  3. Step 3: Cross multiply
    110,485.80x = 165,752.70 × 40,365
  4. Step 4: Simplify right side
    110,485.80x = 6,690,607,735.50
  5. Step 5: Solve for x
    x = 6,690,607,735.50/110,485.80
  6. Step 6: Final answer
    x = 60,556.27

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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.