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Finding the Fourth Proportional to 125,043.14, 187,329.51 and 61,789.64

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Solution

The fourth proportional to 125,043.14, 187,329.51 and 61,789.64 is: 92,568.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,043.14 : 187,329.51 = 61,789.64 : x
  2. Step 2: Convert to fraction form
    125,043.14/187,329.51 = 61,789.64/x
  3. Step 3: Cross multiply
    125,043.14x = 187,329.51 × 61,789.64
  4. Step 4: Simplify right side
    125,043.14x = 11,575,022,047.63
  5. Step 5: Solve for x
    x = 11,575,022,047.63/125,043.14
  6. Step 6: Final answer
    x = 92,568.23

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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.