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Finding the Fourth Proportional to 255,603.89, 352,748.78 and 140,882.37

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Solution

The fourth proportional to 255,603.89, 352,748.78 and 140,882.37 is: 194,426.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,603.89 : 352,748.78 = 140,882.37 : x
  2. Step 2: Convert to fraction form
    255,603.89/352,748.78 = 140,882.37/x
  3. Step 3: Cross multiply
    255,603.89x = 352,748.78 × 140,882.37
  4. Step 4: Simplify right side
    255,603.89x = 49,696,083,436.60
  5. Step 5: Solve for x
    x = 49,696,083,436.60/255,603.89
  6. Step 6: Final answer
    x = 194,426.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.