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Finding the Fourth Proportional to 448,765.08, 672,972.66 and 168,129.24

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Solution

The fourth proportional to 448,765.08, 672,972.66 and 168,129.24 is: 252,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,765.08 : 672,972.66 = 168,129.24 : x
  2. Step 2: Convert to fraction form
    448,765.08/672,972.66 = 168,129.24/x
  3. Step 3: Cross multiply
    448,765.08x = 672,972.66 × 168,129.24
  4. Step 4: Simplify right side
    448,765.08x = 113,146,381,866.58
  5. Step 5: Solve for x
    x = 113,146,381,866.58/448,765.08
  6. Step 6: Final answer
    x = 252,128.31

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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.