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Finding the Fourth Proportional to 109,651.68, 164,527.56 and 59,656.80

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Solution

The fourth proportional to 109,651.68, 164,527.56 and 59,656.80 is: 89,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,651.68 : 164,527.56 = 59,656.80 : x
  2. Step 2: Convert to fraction form
    109,651.68/164,527.56 = 59,656.80/x
  3. Step 3: Cross multiply
    109,651.68x = 164,527.56 × 59,656.80
  4. Step 4: Simplify right side
    109,651.68x = 9,815,187,741.41
  5. Step 5: Solve for x
    x = 9,815,187,741.41/109,651.68
  6. Step 6: Final answer
    x = 89,512.42

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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.