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Finding the Fourth Proportional to 448,611.44, 672,720.30 and 167,931.86

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Solution

The fourth proportional to 448,611.44, 672,720.30 and 167,931.86 is: 251,824.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,611.44 : 672,720.30 = 167,931.86 : x
  2. Step 2: Convert to fraction form
    448,611.44/672,720.30 = 167,931.86/x
  3. Step 3: Cross multiply
    448,611.44x = 672,720.30 × 167,931.86
  4. Step 4: Simplify right side
    448,611.44x = 112,971,167,875.16
  5. Step 5: Solve for x
    x = 112,971,167,875.16/448,611.44
  6. Step 6: Final answer
    x = 251,824.09

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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.