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Finding the Fourth Proportional to 125,888.58, 188,654.87 and 69,754.37

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Solution

The fourth proportional to 125,888.58, 188,654.87 and 69,754.37 is: 104,532.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,888.58 : 188,654.87 = 69,754.37 : x
  2. Step 2: Convert to fraction form
    125,888.58/188,654.87 = 69,754.37/x
  3. Step 3: Cross multiply
    125,888.58x = 188,654.87 × 69,754.37
  4. Step 4: Simplify right side
    125,888.58x = 13,159,500,835.39
  5. Step 5: Solve for x
    x = 13,159,500,835.39/125,888.58
  6. Step 6: Final answer
    x = 104,532.92

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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.