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Finding the Fourth Proportional to 447,649.02, 671,473.60 and 148,049.18

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Solution

The fourth proportional to 447,649.02, 671,473.60 and 148,049.18 is: 222,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,649.02 : 671,473.60 = 148,049.18 : x
  2. Step 2: Convert to fraction form
    447,649.02/671,473.60 = 148,049.18/x
  3. Step 3: Cross multiply
    447,649.02x = 671,473.60 × 148,049.18
  4. Step 4: Simplify right side
    447,649.02x = 99,411,115,871.65
  5. Step 5: Solve for x
    x = 99,411,115,871.65/447,649.02
  6. Step 6: Final answer
    x = 222,073.79

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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.