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Finding the Fourth Proportional to 118,576.70, 177,865.05 and 48,506.30

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Solution

The fourth proportional to 118,576.70, 177,865.05 and 48,506.30 is: 72,759.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,576.70 : 177,865.05 = 48,506.30 : x
  2. Step 2: Convert to fraction form
    118,576.70/177,865.05 = 48,506.30/x
  3. Step 3: Cross multiply
    118,576.70x = 177,865.05 × 48,506.30
  4. Step 4: Simplify right side
    118,576.70x = 8,627,575,474.82
  5. Step 5: Solve for x
    x = 8,627,575,474.82/118,576.70
  6. Step 6: Final answer
    x = 72,759.45

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1.5x scale

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.