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Finding the Fourth Proportional to 325,715.99, 488,480.29 and 112,428.47

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Solution

The fourth proportional to 325,715.99, 488,480.29 and 112,428.47 is: 168,610.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,715.99 : 488,480.29 = 112,428.47 : x
  2. Step 2: Convert to fraction form
    325,715.99/488,480.29 = 112,428.47/x
  3. Step 3: Cross multiply
    325,715.99x = 488,480.29 × 112,428.47
  4. Step 4: Simplify right side
    325,715.99x = 54,919,092,569.99
  5. Step 5: Solve for x
    x = 54,919,092,569.99/325,715.99
  6. Step 6: Final answer
    x = 168,610.37

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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.