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Finding the Fourth Proportional to 356,448.21, 534,672.31 and 119,790.88

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Solution

The fourth proportional to 356,448.21, 534,672.31 and 119,790.88 is: 179,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,448.21 : 534,672.31 = 119,790.88 : x
  2. Step 2: Convert to fraction form
    356,448.21/534,672.31 = 119,790.88/x
  3. Step 3: Cross multiply
    356,448.21x = 534,672.31 × 119,790.88
  4. Step 4: Simplify right side
    356,448.21x = 64,048,866,227.06
  5. Step 5: Solve for x
    x = 64,048,866,227.06/356,448.21
  6. Step 6: Final answer
    x = 179,686.32

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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.