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Finding the Fourth Proportional to 296,495.73, 444,755.90 and 86,133.66

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Solution

The fourth proportional to 296,495.73, 444,755.90 and 86,133.66 is: 129,204.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,495.73 : 444,755.90 = 86,133.66 : x
  2. Step 2: Convert to fraction form
    296,495.73/444,755.90 = 86,133.66/x
  3. Step 3: Cross multiply
    296,495.73x = 444,755.90 × 86,133.66
  4. Step 4: Simplify right side
    296,495.73x = 38,308,454,800.82
  5. Step 5: Solve for x
    x = 38,308,454,800.82/296,495.73
  6. Step 6: Final answer
    x = 129,204.07

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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.