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Finding the Fourth Proportional to 357,459,200.80, 536,251,786.80 and 127,561,760.80

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Solution

The fourth proportional to 357,459,200.80, 536,251,786.80 and 127,561,760.80 is: 191,365,118.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,459,200.80 : 536,251,786.80 = 127,561,760.80 : x
  2. Step 2: Convert to fraction form
    357,459,200.80/536,251,786.80 = 127,561,760.80/x
  3. Step 3: Cross multiply
    357,459,200.80x = 536,251,786.80 × 127,561,760.80
  4. Step 4: Simplify right side
    357,459,200.80x = 68,405,222,156,354,200
  5. Step 5: Solve for x
    x = 68,405,222,156,354,200/357,459,200.80
  6. Step 6: Final answer
    x = 191,365,118.04

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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.