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Finding the Fourth Proportional to 248,191,132.80, 371,614,852.80 and 194,443,420.80

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Solution

The fourth proportional to 248,191,132.80, 371,614,852.80 and 194,443,420.80 is: 291,138,778.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,191,132.80 : 371,614,852.80 = 194,443,420.80 : x
  2. Step 2: Convert to fraction form
    248,191,132.80/371,614,852.80 = 194,443,420.80/x
  3. Step 3: Cross multiply
    248,191,132.80x = 371,614,852.80 × 194,443,420.80
  4. Step 4: Simplify right side
    248,191,132.80x = 72,258,063,198,520,464
  5. Step 5: Solve for x
    x = 72,258,063,198,520,464/248,191,132.80
  6. Step 6: Final answer
    x = 291,138,778.34

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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.