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Finding the Fourth Proportional to 323,041.68, 484,661.76 and 165,380.80

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Solution

The fourth proportional to 323,041.68, 484,661.76 and 165,380.80 is: 248,122.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,041.68 : 484,661.76 = 165,380.80 : x
  2. Step 2: Convert to fraction form
    323,041.68/484,661.76 = 165,380.80/x
  3. Step 3: Cross multiply
    323,041.68x = 484,661.76 × 165,380.80
  4. Step 4: Simplify right side
    323,041.68x = 80,153,749,598.21
  5. Step 5: Solve for x
    x = 80,153,749,598.21/323,041.68
  6. Step 6: Final answer
    x = 248,122.01

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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.