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Finding the Fourth Proportional to 139,593.78, 209,307.45 and 94,670.37

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Solution

The fourth proportional to 139,593.78, 209,307.45 and 94,670.37 is: 141,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,593.78 : 209,307.45 = 94,670.37 : x
  2. Step 2: Convert to fraction form
    139,593.78/209,307.45 = 94,670.37/x
  3. Step 3: Cross multiply
    139,593.78x = 209,307.45 × 94,670.37
  4. Step 4: Simplify right side
    139,593.78x = 19,815,213,785.17
  5. Step 5: Solve for x
    x = 19,815,213,785.17/139,593.78
  6. Step 6: Final answer
    x = 141,949.11

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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.