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Finding the Fourth Proportional to 252,760,807.20, 354,885,496.80 and 252,760,807.20

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Solution

The fourth proportional to 252,760,807.20, 354,885,496.80 and 252,760,807.20 is: 354,885,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,760,807.20 : 354,885,496.80 = 252,760,807.20 : x
  2. Step 2: Convert to fraction form
    252,760,807.20/354,885,496.80 = 252,760,807.20/x
  3. Step 3: Cross multiply
    252,760,807.20x = 354,885,496.80 × 252,760,807.20
  4. Step 4: Simplify right side
    252,760,807.20x = 89,701,144,634,741,008
  5. Step 5: Solve for x
    x = 89,701,144,634,741,008/252,760,807.20
  6. Step 6: Final answer
    x = 354,885,496.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.