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Finding the Fourth Proportional to 207,361.92, 286,160.04 and 116,719.28

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Solution

The fourth proportional to 207,361.92, 286,160.04 and 116,719.28 is: 161,072.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,361.92 : 286,160.04 = 116,719.28 : x
  2. Step 2: Convert to fraction form
    207,361.92/286,160.04 = 116,719.28/x
  3. Step 3: Cross multiply
    207,361.92x = 286,160.04 × 116,719.28
  4. Step 4: Simplify right side
    207,361.92x = 33,400,393,475.87
  5. Step 5: Solve for x
    x = 33,400,393,475.87/207,361.92
  6. Step 6: Final answer
    x = 161,072.93

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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.