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Finding the Fourth Proportional to 448,455.60, 672,942.60 and 168,001.20

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Solution

The fourth proportional to 448,455.60, 672,942.60 and 168,001.20 is: 252,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,455.60 : 672,942.60 = 168,001.20 : x
  2. Step 2: Convert to fraction form
    448,455.60/672,942.60 = 168,001.20/x
  3. Step 3: Cross multiply
    448,455.60x = 672,942.60 × 168,001.20
  4. Step 4: Simplify right side
    448,455.60x = 113,055,164,331.12
  5. Step 5: Solve for x
    x = 113,055,164,331.12/448,455.60
  6. Step 6: Final answer
    x = 252,098.90

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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.