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Finding the Fourth Proportional to 138,027.59, 206,893.76 and 63,035.36

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Solution

The fourth proportional to 138,027.59, 206,893.76 and 63,035.36 is: 94,485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,027.59 : 206,893.76 = 63,035.36 : x
  2. Step 2: Convert to fraction form
    138,027.59/206,893.76 = 63,035.36/x
  3. Step 3: Cross multiply
    138,027.59x = 206,893.76 × 63,035.36
  4. Step 4: Simplify right side
    138,027.59x = 13,041,622,643.35
  5. Step 5: Solve for x
    x = 13,041,622,643.35/138,027.59
  6. Step 6: Final answer
    x = 94,485.62

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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.