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Finding the Fourth Proportional to 200,459.52, 276,634.26 and 109,818.78

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Solution

The fourth proportional to 200,459.52, 276,634.26 and 109,818.78 is: 151,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,459.52 : 276,634.26 = 109,818.78 : x
  2. Step 2: Convert to fraction form
    200,459.52/276,634.26 = 109,818.78/x
  3. Step 3: Cross multiply
    200,459.52x = 276,634.26 × 109,818.78
  4. Step 4: Simplify right side
    200,459.52x = 30,379,636,939.40
  5. Step 5: Solve for x
    x = 30,379,636,939.40/200,459.52
  6. Step 6: Final answer
    x = 151,549.98

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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.