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Finding the Fourth Proportional to 134,787.94, 186,007.35 and 75,171.94

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Solution

The fourth proportional to 134,787.94, 186,007.35 and 75,171.94 is: 103,737.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,787.94 : 186,007.35 = 75,171.94 : x
  2. Step 2: Convert to fraction form
    134,787.94/186,007.35 = 75,171.94/x
  3. Step 3: Cross multiply
    134,787.94x = 186,007.35 × 75,171.94
  4. Step 4: Simplify right side
    134,787.94x = 13,982,533,170.64
  5. Step 5: Solve for x
    x = 13,982,533,170.64/134,787.94
  6. Step 6: Final answer
    x = 103,737.27

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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.