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Finding the Fourth Proportional to 125,924.67, 187,965.69 and 110,978.35

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Solution

The fourth proportional to 125,924.67, 187,965.69 and 110,978.35 is: 165,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,924.67 : 187,965.69 = 110,978.35 : x
  2. Step 2: Convert to fraction form
    125,924.67/187,965.69 = 110,978.35/x
  3. Step 3: Cross multiply
    125,924.67x = 187,965.69 × 110,978.35
  4. Step 4: Simplify right side
    125,924.67x = 20,860,122,132.81
  5. Step 5: Solve for x
    x = 20,860,122,132.81/125,924.67
  6. Step 6: Final answer
    x = 165,655.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.