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Finding the Fourth Proportional to 169,485,766.80, 254,228,650.20 and 56,018,374.80

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Solution

The fourth proportional to 169,485,766.80, 254,228,650.20 and 56,018,374.80 is: 84,027,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,485,766.80 : 254,228,650.20 = 56,018,374.80 : x
  2. Step 2: Convert to fraction form
    169,485,766.80/254,228,650.20 = 56,018,374.80/x
  3. Step 3: Cross multiply
    169,485,766.80x = 254,228,650.20 × 56,018,374.80
  4. Step 4: Simplify right side
    169,485,766.80x = 14,241,475,811,801,694
  5. Step 5: Solve for x
    x = 14,241,475,811,801,694/169,485,766.80
  6. Step 6: Final answer
    x = 84,027,562.20

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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.