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Finding the Fourth Proportional to 448,698.32, 672,850.38 and 168,018.68

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Solution

The fourth proportional to 448,698.32, 672,850.38 and 168,018.68 is: 251,954.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,698.32 : 672,850.38 = 168,018.68 : x
  2. Step 2: Convert to fraction form
    448,698.32/672,850.38 = 168,018.68/x
  3. Step 3: Cross multiply
    448,698.32x = 672,850.38 × 168,018.68
  4. Step 4: Simplify right side
    448,698.32x = 113,051,432,685.10
  5. Step 5: Solve for x
    x = 113,051,432,685.10/448,698.32
  6. Step 6: Final answer
    x = 251,954.21

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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.