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Finding the Fourth Proportional to 100,772.58, 150,826.68 and 55,724.64

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Solution

The fourth proportional to 100,772.58, 150,826.68 and 55,724.64 is: 83,403.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,772.58 : 150,826.68 = 55,724.64 : x
  2. Step 2: Convert to fraction form
    100,772.58/150,826.68 = 55,724.64/x
  3. Step 3: Cross multiply
    100,772.58x = 150,826.68 × 55,724.64
  4. Step 4: Simplify right side
    100,772.58x = 8,404,762,445.40
  5. Step 5: Solve for x
    x = 8,404,762,445.40/100,772.58
  6. Step 6: Final answer
    x = 83,403.27

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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.