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Finding the Fourth Proportional to 275,488.46, 413,203.52 and 88,485.38

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Solution

The fourth proportional to 275,488.46, 413,203.52 and 88,485.38 is: 132,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,488.46 : 413,203.52 = 88,485.38 : x
  2. Step 2: Convert to fraction form
    275,488.46/413,203.52 = 88,485.38/x
  3. Step 3: Cross multiply
    275,488.46x = 413,203.52 × 88,485.38
  4. Step 4: Simplify right side
    275,488.46x = 36,562,470,484.54
  5. Step 5: Solve for x
    x = 36,562,470,484.54/275,488.46
  6. Step 6: Final answer
    x = 132,718.70

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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.