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Finding the Fourth Proportional to 484,041.46, 726,096.87 and 129,053.62

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Solution

The fourth proportional to 484,041.46, 726,096.87 and 129,053.62 is: 193,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,041.46 : 726,096.87 = 129,053.62 : x
  2. Step 2: Convert to fraction form
    484,041.46/726,096.87 = 129,053.62/x
  3. Step 3: Cross multiply
    484,041.46x = 726,096.87 × 129,053.62
  4. Step 4: Simplify right side
    484,041.46x = 93,705,429,544.17
  5. Step 5: Solve for x
    x = 93,705,429,544.17/484,041.46
  6. Step 6: Final answer
    x = 193,589.68

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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.