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Finding the Fourth Proportional to 332,439,982.74, 498,659,978.43 and 90,102,886.74

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Solution

The fourth proportional to 332,439,982.74, 498,659,978.43 and 90,102,886.74 is: 135,154,331.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,439,982.74 : 498,659,978.43 = 90,102,886.74 : x
  2. Step 2: Convert to fraction form
    332,439,982.74/498,659,978.43 = 90,102,886.74/x
  3. Step 3: Cross multiply
    332,439,982.74x = 498,659,978.43 × 90,102,886.74
  4. Step 4: Simplify right side
    332,439,982.74x = 44,930,703,558,249,128
  5. Step 5: Solve for x
    x = 44,930,703,558,249,128/332,439,982.74
  6. Step 6: Final answer
    x = 135,154,331.28

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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.