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Finding the Fourth Proportional to 110,043.85, 165,076.71 and 39,928.63

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Solution

The fourth proportional to 110,043.85, 165,076.71 and 39,928.63 is: 59,896.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,043.85 : 165,076.71 = 39,928.63 : x
  2. Step 2: Convert to fraction form
    110,043.85/165,076.71 = 39,928.63/x
  3. Step 3: Cross multiply
    110,043.85x = 165,076.71 × 39,928.63
  4. Step 4: Simplify right side
    110,043.85x = 6,591,286,875.21
  5. Step 5: Solve for x
    x = 6,591,286,875.21/110,043.85
  6. Step 6: Final answer
    x = 59,896.91

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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.