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Finding the Fourth Proportional to 484,615.04, 726,715.20 and 168,978.56

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Solution

The fourth proportional to 484,615.04, 726,715.20 and 168,978.56 is: 253,395.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,615.04 : 726,715.20 = 168,978.56 : x
  2. Step 2: Convert to fraction form
    484,615.04/726,715.20 = 168,978.56/x
  3. Step 3: Cross multiply
    484,615.04x = 726,715.20 × 168,978.56
  4. Step 4: Simplify right side
    484,615.04x = 122,799,288,026.11
  5. Step 5: Solve for x
    x = 122,799,288,026.11/484,615.04
  6. Step 6: Final answer
    x = 253,395.54

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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.