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Finding the Fourth Proportional to 262,203.30, 392,320.80 and 173,629.80

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Solution

The fourth proportional to 262,203.30, 392,320.80 and 173,629.80 is: 259,793.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,203.30 : 392,320.80 = 173,629.80 : x
  2. Step 2: Convert to fraction form
    262,203.30/392,320.80 = 173,629.80/x
  3. Step 3: Cross multiply
    262,203.30x = 392,320.80 × 173,629.80
  4. Step 4: Simplify right side
    262,203.30x = 68,118,582,039.84
  5. Step 5: Solve for x
    x = 68,118,582,039.84/262,203.30
  6. Step 6: Final answer
    x = 259,793.00

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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.