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Finding the Fourth Proportional to 125,956.86, 188,907.09 and 75,968.10

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Solution

The fourth proportional to 125,956.86, 188,907.09 and 75,968.10 is: 113,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,956.86 : 188,907.09 = 75,968.10 : x
  2. Step 2: Convert to fraction form
    125,956.86/188,907.09 = 75,968.10/x
  3. Step 3: Cross multiply
    125,956.86x = 188,907.09 × 75,968.10
  4. Step 4: Simplify right side
    125,956.86x = 14,350,912,703.83
  5. Step 5: Solve for x
    x = 14,350,912,703.83/125,956.86
  6. Step 6: Final answer
    x = 113,935.14

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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.