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Finding the Fourth Proportional to 447,418.61, 671,129.30 and 110,459.30

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Solution

The fourth proportional to 447,418.61, 671,129.30 and 110,459.30 is: 165,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,418.61 : 671,129.30 = 110,459.30 : x
  2. Step 2: Convert to fraction form
    447,418.61/671,129.30 = 110,459.30/x
  3. Step 3: Cross multiply
    447,418.61x = 671,129.30 × 110,459.30
  4. Step 4: Simplify right side
    447,418.61x = 74,132,471,434.36
  5. Step 5: Solve for x
    x = 74,132,471,434.36/447,418.61
  6. Step 6: Final answer
    x = 165,689.29

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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.