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Finding the Fourth Proportional to 615,661,530.96, 923,504,071.80 and 201,139,494.48

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Solution

The fourth proportional to 615,661,530.96, 923,504,071.80 and 201,139,494.48 is: 301,713,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,661,530.96 : 923,504,071.80 = 201,139,494.48 : x
  2. Step 2: Convert to fraction form
    615,661,530.96/923,504,071.80 = 201,139,494.48/x
  3. Step 3: Cross multiply
    615,661,530.96x = 923,504,071.80 × 201,139,494.48
  4. Step 4: Simplify right side
    615,661,530.96x = 185,753,142,152,073,600
  5. Step 5: Solve for x
    x = 185,753,142,152,073,600/615,661,530.96
  6. Step 6: Final answer
    x = 301,713,088.79

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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.