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Finding the Fourth Proportional to 371,957.67, 557,621.21 and 147,476.70

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Solution

The fourth proportional to 371,957.67, 557,621.21 and 147,476.70 is: 221,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,957.67 : 557,621.21 = 147,476.70 : x
  2. Step 2: Convert to fraction form
    371,957.67/557,621.21 = 147,476.70/x
  3. Step 3: Cross multiply
    371,957.67x = 557,621.21 × 147,476.70
  4. Step 4: Simplify right side
    371,957.67x = 82,236,136,269.50
  5. Step 5: Solve for x
    x = 82,236,136,269.50/371,957.67
  6. Step 6: Final answer
    x = 221,090.04

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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.