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Finding the Fourth Proportional to 618,415.58, 927,610.16 and 169,136.46

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Solution

The fourth proportional to 618,415.58, 927,610.16 and 169,136.46 is: 253,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,415.58 : 927,610.16 = 169,136.46 : x
  2. Step 2: Convert to fraction form
    618,415.58/927,610.16 = 169,136.46/x
  3. Step 3: Cross multiply
    618,415.58x = 927,610.16 × 169,136.46
  4. Step 4: Simplify right side
    618,415.58x = 156,892,697,876.75
  5. Step 5: Solve for x
    x = 156,892,697,876.75/618,415.58
  6. Step 6: Final answer
    x = 253,701.07

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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.