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Finding the Fourth Proportional to 492,079.70, 738,119.55 and 159,655.70

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Solution

The fourth proportional to 492,079.70, 738,119.55 and 159,655.70 is: 239,483.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,079.70 : 738,119.55 = 159,655.70 : x
  2. Step 2: Convert to fraction form
    492,079.70/738,119.55 = 159,655.70/x
  3. Step 3: Cross multiply
    492,079.70x = 738,119.55 × 159,655.70
  4. Step 4: Simplify right side
    492,079.70x = 117,844,993,438.94
  5. Step 5: Solve for x
    x = 117,844,993,438.94/492,079.70
  6. Step 6: Final answer
    x = 239,483.55

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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.