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Finding the Fourth Proportional to 666,057.44, 999,149.07 and 186,285.08

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Solution

The fourth proportional to 666,057.44, 999,149.07 and 186,285.08 is: 279,445.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,057.44 : 999,149.07 = 186,285.08 : x
  2. Step 2: Convert to fraction form
    666,057.44/999,149.07 = 186,285.08/x
  3. Step 3: Cross multiply
    666,057.44x = 999,149.07 × 186,285.08
  4. Step 4: Simplify right side
    666,057.44x = 186,126,564,436.88
  5. Step 5: Solve for x
    x = 186,126,564,436.88/666,057.44
  6. Step 6: Final answer
    x = 279,445.21

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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.