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Finding the Fourth Proportional to 162,049.68, 223,628.22 and 90,425.43

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Solution

The fourth proportional to 162,049.68, 223,628.22 and 90,425.43 is: 124,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,049.68 : 223,628.22 = 90,425.43 : x
  2. Step 2: Convert to fraction form
    162,049.68/223,628.22 = 90,425.43/x
  3. Step 3: Cross multiply
    162,049.68x = 223,628.22 × 90,425.43
  4. Step 4: Simplify right side
    162,049.68x = 20,221,677,953.63
  5. Step 5: Solve for x
    x = 20,221,677,953.63/162,049.68
  6. Step 6: Final answer
    x = 124,786.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.