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Finding the Fourth Proportional to 615,661,529.96, 923,504,070.30 and 201,139,493.48

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Solution

The fourth proportional to 615,661,529.96, 923,504,070.30 and 201,139,493.48 is: 301,713,087.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,661,529.96 : 923,504,070.30 = 201,139,493.48 : x
  2. Step 2: Convert to fraction form
    615,661,529.96/923,504,070.30 = 201,139,493.48/x
  3. Step 3: Cross multiply
    615,661,529.96x = 923,504,070.30 × 201,139,493.48
  4. Step 4: Simplify right side
    615,661,529.96x = 185,753,140,926,860,288
  5. Step 5: Solve for x
    x = 185,753,140,926,860,288/615,661,529.96
  6. Step 6: Final answer
    x = 301,713,087.29

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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.