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Finding the Fourth Proportional to 125,046.21, 187,512.59 and 53,935.25

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Solution

The fourth proportional to 125,046.21, 187,512.59 and 53,935.25 is: 80,878.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,046.21 : 187,512.59 = 53,935.25 : x
  2. Step 2: Convert to fraction form
    125,046.21/187,512.59 = 53,935.25/x
  3. Step 3: Cross multiply
    125,046.21x = 187,512.59 × 53,935.25
  4. Step 4: Simplify right side
    125,046.21x = 10,113,537,212.56
  5. Step 5: Solve for x
    x = 10,113,537,212.56/125,046.21
  6. Step 6: Final answer
    x = 80,878.40

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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.