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Finding the Fourth Proportional to 113,858.64, 170,787.93 and 30,752.64

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Solution

The fourth proportional to 113,858.64, 170,787.93 and 30,752.64 is: 46,128.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,858.64 : 170,787.93 = 30,752.64 : x
  2. Step 2: Convert to fraction form
    113,858.64/170,787.93 = 30,752.64/x
  3. Step 3: Cross multiply
    113,858.64x = 170,787.93 × 30,752.64
  4. Step 4: Simplify right side
    113,858.64x = 5,252,179,727.64
  5. Step 5: Solve for x
    x = 5,252,179,727.64/113,858.64
  6. Step 6: Final answer
    x = 46,128.95

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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.