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Finding the Fourth Proportional to 98,240.70, 147,377.38 and 39,076.94

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Solution

The fourth proportional to 98,240.70, 147,377.38 and 39,076.94 is: 58,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,240.70 : 147,377.38 = 39,076.94 : x
  2. Step 2: Convert to fraction form
    98,240.70/147,377.38 = 39,076.94/x
  3. Step 3: Cross multiply
    98,240.70x = 147,377.38 × 39,076.94
  4. Step 4: Simplify right side
    98,240.70x = 5,759,057,035.62
  5. Step 5: Solve for x
    x = 5,759,057,035.62/98,240.70
  6. Step 6: Final answer
    x = 58,621.91

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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.