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Finding the Fourth Proportional to 113,751.43, 170,731.86 and 57,630.58

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Solution

The fourth proportional to 113,751.43, 170,731.86 and 57,630.58 is: 86,498.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,751.43 : 170,731.86 = 57,630.58 : x
  2. Step 2: Convert to fraction form
    113,751.43/170,731.86 = 57,630.58/x
  3. Step 3: Cross multiply
    113,751.43x = 170,731.86 × 57,630.58
  4. Step 4: Simplify right side
    113,751.43x = 9,839,376,116.28
  5. Step 5: Solve for x
    x = 9,839,376,116.28/113,751.43
  6. Step 6: Final answer
    x = 86,498.92

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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.