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Finding the Fourth Proportional to 282,490.34, 423,763.25 and 92,873.79

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Solution

The fourth proportional to 282,490.34, 423,763.25 and 92,873.79 is: 139,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,490.34 : 423,763.25 = 92,873.79 : x
  2. Step 2: Convert to fraction form
    282,490.34/423,763.25 = 92,873.79/x
  3. Step 3: Cross multiply
    282,490.34x = 423,763.25 × 92,873.79
  4. Step 4: Simplify right side
    282,490.34x = 39,356,498,625.85
  5. Step 5: Solve for x
    x = 39,356,498,625.85/282,490.34
  6. Step 6: Final answer
    x = 139,319.81

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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.