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Finding the Fourth Proportional to 447,509.22, 671,197.15 and 147,991.37

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Solution

The fourth proportional to 447,509.22, 671,197.15 and 147,991.37 is: 221,965.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,509.22 : 671,197.15 = 147,991.37 : x
  2. Step 2: Convert to fraction form
    447,509.22/671,197.15 = 147,991.37/x
  3. Step 3: Cross multiply
    447,509.22x = 671,197.15 × 147,991.37
  4. Step 4: Simplify right side
    447,509.22x = 99,331,385,768.60
  5. Step 5: Solve for x
    x = 99,331,385,768.60/447,509.22
  6. Step 6: Final answer
    x = 221,965.00

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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.