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Finding the Fourth Proportional to 447,602.31, 671,504.95 and 148,082.42

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Solution

The fourth proportional to 447,602.31, 671,504.95 and 148,082.42 is: 222,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,602.31 : 671,504.95 = 148,082.42 : x
  2. Step 2: Convert to fraction form
    447,602.31/671,504.95 = 148,082.42/x
  3. Step 3: Cross multiply
    447,602.31x = 671,504.95 × 148,082.42
  4. Step 4: Simplify right side
    447,602.31x = 99,438,078,037.98
  5. Step 5: Solve for x
    x = 99,438,078,037.98/447,602.31
  6. Step 6: Final answer
    x = 222,157.20

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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.