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Finding the Fourth Proportional to 298,672,843.80, 448,009,265.70 and 94,221,586.20

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Solution

The fourth proportional to 298,672,843.80, 448,009,265.70 and 94,221,586.20 is: 141,332,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,672,843.80 : 448,009,265.70 = 94,221,586.20 : x
  2. Step 2: Convert to fraction form
    298,672,843.80/448,009,265.70 = 94,221,586.20/x
  3. Step 3: Cross multiply
    298,672,843.80x = 448,009,265.70 × 94,221,586.20
  4. Step 4: Simplify right side
    298,672,843.80x = 42,212,143,646,551,256
  5. Step 5: Solve for x
    x = 42,212,143,646,551,256/298,672,843.80
  6. Step 6: Final answer
    x = 141,332,379.30

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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.