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Finding the Fourth Proportional to 104,265.93, 156,025.14 and 90,274.20

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Solution

The fourth proportional to 104,265.93, 156,025.14 and 90,274.20 is: 135,087.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,265.93 : 156,025.14 = 90,274.20 : x
  2. Step 2: Convert to fraction form
    104,265.93/156,025.14 = 90,274.20/x
  3. Step 3: Cross multiply
    104,265.93x = 156,025.14 × 90,274.20
  4. Step 4: Simplify right side
    104,265.93x = 14,085,043,769.77
  5. Step 5: Solve for x
    x = 14,085,043,769.77/104,265.93
  6. Step 6: Final answer
    x = 135,087.69

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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.