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Finding the Fourth Proportional to 361,172.48, 498,664.32 and 225,259.52

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Solution

The fourth proportional to 361,172.48, 498,664.32 and 225,259.52 is: 311,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,172.48 : 498,664.32 = 225,259.52 : x
  2. Step 2: Convert to fraction form
    361,172.48/498,664.32 = 225,259.52/x
  3. Step 3: Cross multiply
    361,172.48x = 498,664.32 × 225,259.52
  4. Step 4: Simplify right side
    361,172.48x = 112,328,885,364.33
  5. Step 5: Solve for x
    x = 112,328,885,364.33/361,172.48
  6. Step 6: Final answer
    x = 311,011.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.