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Finding the Fourth Proportional to 492,730.80, 739,096.20 and 177,146.70

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Solution

The fourth proportional to 492,730.80, 739,096.20 and 177,146.70 is: 265,720.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,730.80 : 739,096.20 = 177,146.70 : x
  2. Step 2: Convert to fraction form
    492,730.80/739,096.20 = 177,146.70/x
  3. Step 3: Cross multiply
    492,730.80x = 739,096.20 × 177,146.70
  4. Step 4: Simplify right side
    492,730.80x = 130,928,452,812.54
  5. Step 5: Solve for x
    x = 130,928,452,812.54/492,730.80
  6. Step 6: Final answer
    x = 265,720.05

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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.