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Finding the Fourth Proportional to 551,406.20, 827,109.30 and 152,108.60

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Solution

The fourth proportional to 551,406.20, 827,109.30 and 152,108.60 is: 228,162.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,406.20 : 827,109.30 = 152,108.60 : x
  2. Step 2: Convert to fraction form
    551,406.20/827,109.30 = 152,108.60/x
  3. Step 3: Cross multiply
    551,406.20x = 827,109.30 × 152,108.60
  4. Step 4: Simplify right side
    551,406.20x = 125,810,437,669.98
  5. Step 5: Solve for x
    x = 125,810,437,669.98/551,406.20
  6. Step 6: Final answer
    x = 228,162.90

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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.