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Finding the Fourth Proportional to 192,899.66, 289,346.52 and 52,657.88

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Solution

The fourth proportional to 192,899.66, 289,346.52 and 52,657.88 is: 78,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,899.66 : 289,346.52 = 52,657.88 : x
  2. Step 2: Convert to fraction form
    192,899.66/289,346.52 = 52,657.88/x
  3. Step 3: Cross multiply
    192,899.66x = 289,346.52 × 52,657.88
  4. Step 4: Simplify right side
    192,899.66x = 15,236,374,328.58
  5. Step 5: Solve for x
    x = 15,236,374,328.58/192,899.66
  6. Step 6: Final answer
    x = 78,986.01

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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.