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Finding the Fourth Proportional to 110,415.54, 165,672.54 and 40,278.45

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Solution

The fourth proportional to 110,415.54, 165,672.54 and 40,278.45 is: 60,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,415.54 : 165,672.54 = 40,278.45 : x
  2. Step 2: Convert to fraction form
    110,415.54/165,672.54 = 40,278.45/x
  3. Step 3: Cross multiply
    110,415.54x = 165,672.54 × 40,278.45
  4. Step 4: Simplify right side
    110,415.54x = 6,673,033,118.76
  5. Step 5: Solve for x
    x = 6,673,033,118.76/110,415.54
  6. Step 6: Final answer
    x = 60,435.63

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1.5x scale

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.