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Finding the Fourth Proportional to 448,706.68, 672,914.34 and 149,106.76

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Solution

The fourth proportional to 448,706.68, 672,914.34 and 149,106.76 is: 223,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,706.68 : 672,914.34 = 149,106.76 : x
  2. Step 2: Convert to fraction form
    448,706.68/672,914.34 = 149,106.76/x
  3. Step 3: Cross multiply
    448,706.68x = 672,914.34 × 149,106.76
  4. Step 4: Simplify right side
    448,706.68x = 100,336,076,994.94
  5. Step 5: Solve for x
    x = 100,336,076,994.94/448,706.68
  6. Step 6: Final answer
    x = 223,611.73

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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.