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Finding the Fourth Proportional to 363,836,672.40, 545,755,008.60 and 200,011,126.80

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Solution

The fourth proportional to 363,836,672.40, 545,755,008.60 and 200,011,126.80 is: 300,016,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,836,672.40 : 545,755,008.60 = 200,011,126.80 : x
  2. Step 2: Convert to fraction form
    363,836,672.40/545,755,008.60 = 200,011,126.80/x
  3. Step 3: Cross multiply
    363,836,672.40x = 545,755,008.60 × 200,011,126.80
  4. Step 4: Simplify right side
    363,836,672.40x = 109,157,074,226,829,696
  5. Step 5: Solve for x
    x = 109,157,074,226,829,696/363,836,672.40
  6. Step 6: Final answer
    x = 300,016,690.20

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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.