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Finding the Fourth Proportional to 365,428.51, 548,201.89 and 112,649.89

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Solution

The fourth proportional to 365,428.51, 548,201.89 and 112,649.89 is: 168,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,428.51 : 548,201.89 = 112,649.89 : x
  2. Step 2: Convert to fraction form
    365,428.51/548,201.89 = 112,649.89/x
  3. Step 3: Cross multiply
    365,428.51x = 548,201.89 × 112,649.89
  4. Step 4: Simplify right side
    365,428.51x = 61,754,882,404.48
  5. Step 5: Solve for x
    x = 61,754,882,404.48/365,428.51
  6. Step 6: Final answer
    x = 168,993.06

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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.