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Finding the Fourth Proportional to 262,080.70, 392,926.65 and 112,198.30

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Solution

The fourth proportional to 262,080.70, 392,926.65 and 112,198.30 is: 168,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,080.70 : 392,926.65 = 112,198.30 : x
  2. Step 2: Convert to fraction form
    262,080.70/392,926.65 = 112,198.30/x
  3. Step 3: Cross multiply
    262,080.70x = 392,926.65 × 112,198.30
  4. Step 4: Simplify right side
    262,080.70x = 44,085,702,154.70
  5. Step 5: Solve for x
    x = 44,085,702,154.70/262,080.70
  6. Step 6: Final answer
    x = 168,214.23

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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.