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Finding the Fourth Proportional to 104,027.80, 156,041.70 and 51,539.80

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Solution

The fourth proportional to 104,027.80, 156,041.70 and 51,539.80 is: 77,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,027.80 : 156,041.70 = 51,539.80 : x
  2. Step 2: Convert to fraction form
    104,027.80/156,041.70 = 51,539.80/x
  3. Step 3: Cross multiply
    104,027.80x = 156,041.70 × 51,539.80
  4. Step 4: Simplify right side
    104,027.80x = 8,042,358,009.66
  5. Step 5: Solve for x
    x = 8,042,358,009.66/104,027.80
  6. Step 6: Final answer
    x = 77,309.70

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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.