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Finding the Fourth Proportional to 412,666.58, 618,876.50 and 124,466.16

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Solution

The fourth proportional to 412,666.58, 618,876.50 and 124,466.16 is: 186,662.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,666.58 : 618,876.50 = 124,466.16 : x
  2. Step 2: Convert to fraction form
    412,666.58/618,876.50 = 124,466.16/x
  3. Step 3: Cross multiply
    412,666.58x = 618,876.50 × 124,466.16
  4. Step 4: Simplify right side
    412,666.58x = 77,029,181,469.24
  5. Step 5: Solve for x
    x = 77,029,181,469.24/412,666.58
  6. Step 6: Final answer
    x = 186,662.03

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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.