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Finding the Fourth Proportional to 447,485.04, 671,067.72 and 147,910.32

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Solution

The fourth proportional to 447,485.04, 671,067.72 and 147,910.32 is: 221,812.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,485.04 : 671,067.72 = 147,910.32 : x
  2. Step 2: Convert to fraction form
    447,485.04/671,067.72 = 147,910.32/x
  3. Step 3: Cross multiply
    447,485.04x = 671,067.72 × 147,910.32
  4. Step 4: Simplify right side
    447,485.04x = 99,257,841,206.87
  5. Step 5: Solve for x
    x = 99,257,841,206.87/447,485.04
  6. Step 6: Final answer
    x = 221,812.65

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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.