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Finding the Fourth Proportional to 275,429.04, 413,162.36 and 88,429.20

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Solution

The fourth proportional to 275,429.04, 413,162.36 and 88,429.20 is: 132,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,429.04 : 413,162.36 = 88,429.20 : x
  2. Step 2: Convert to fraction form
    275,429.04/413,162.36 = 88,429.20/x
  3. Step 3: Cross multiply
    275,429.04x = 413,162.36 × 88,429.20
  4. Step 4: Simplify right side
    275,429.04x = 36,535,616,964.91
  5. Step 5: Solve for x
    x = 36,535,616,964.91/275,429.04
  6. Step 6: Final answer
    x = 132,649.84

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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.