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Finding the Fourth Proportional to 447,407.23, 671,215.96 and 147,887.82

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Solution

The fourth proportional to 447,407.23, 671,215.96 and 147,887.82 is: 221,866.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,407.23 : 671,215.96 = 147,887.82 : x
  2. Step 2: Convert to fraction form
    447,407.23/671,215.96 = 147,887.82/x
  3. Step 3: Cross multiply
    447,407.23x = 671,215.96 × 147,887.82
  4. Step 4: Simplify right side
    447,407.23x = 99,264,665,073.61
  5. Step 5: Solve for x
    x = 99,264,665,073.61/447,407.23
  6. Step 6: Final answer
    x = 221,866.48

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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.