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Finding the Fourth Proportional to 448,361.10, 672,373.98 and 148,785.84

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Solution

The fourth proportional to 448,361.10, 672,373.98 and 148,785.84 is: 223,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,361.10 : 672,373.98 = 148,785.84 : x
  2. Step 2: Convert to fraction form
    448,361.10/672,373.98 = 148,785.84/x
  3. Step 3: Cross multiply
    448,361.10x = 672,373.98 × 148,785.84
  4. Step 4: Simplify right side
    448,361.10x = 100,039,727,408.44
  5. Step 5: Solve for x
    x = 100,039,727,408.44/448,361.10
  6. Step 6: Final answer
    x = 223,123.12

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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.