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Finding the Fourth Proportional to 139,507.36, 192,562.32 and 94,821.28

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Solution

The fourth proportional to 139,507.36, 192,562.32 and 94,821.28 is: 130,882.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,507.36 : 192,562.32 = 94,821.28 : x
  2. Step 2: Convert to fraction form
    139,507.36/192,562.32 = 94,821.28/x
  3. Step 3: Cross multiply
    139,507.36x = 192,562.32 × 94,821.28
  4. Step 4: Simplify right side
    139,507.36x = 18,259,005,662.17
  5. Step 5: Solve for x
    x = 18,259,005,662.17/139,507.36
  6. Step 6: Final answer
    x = 130,882.02

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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.