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Finding the Fourth Proportional to 200,459.55, 276,634.22 and 109,818.80

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Solution

The fourth proportional to 200,459.55, 276,634.22 and 109,818.80 is: 151,549.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,459.55 : 276,634.22 = 109,818.80 : x
  2. Step 2: Convert to fraction form
    200,459.55/276,634.22 = 109,818.80/x
  3. Step 3: Cross multiply
    200,459.55x = 276,634.22 × 109,818.80
  4. Step 4: Simplify right side
    200,459.55x = 30,379,636,147.07
  5. Step 5: Solve for x
    x = 30,379,636,147.07/200,459.55
  6. Step 6: Final answer
    x = 151,549.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.