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Finding the Fourth Proportional to 611,586.50, 917,308.44 and 162,342.27

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Solution

The fourth proportional to 611,586.50, 917,308.44 and 162,342.27 is: 243,494.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,586.50 : 917,308.44 = 162,342.27 : x
  2. Step 2: Convert to fraction form
    611,586.50/917,308.44 = 162,342.27/x
  3. Step 3: Cross multiply
    611,586.50x = 917,308.44 × 162,342.27
  4. Step 4: Simplify right side
    611,586.50x = 148,917,934,439.76
  5. Step 5: Solve for x
    x = 148,917,934,439.76/611,586.50
  6. Step 6: Final answer
    x = 243,494.48

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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.