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Finding the Fourth Proportional to 104,647.70, 156,970.14 and 25,762.58

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Solution

The fourth proportional to 104,647.70, 156,970.14 and 25,762.58 is: 38,643.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,647.70 : 156,970.14 = 25,762.58 : x
  2. Step 2: Convert to fraction form
    104,647.70/156,970.14 = 25,762.58/x
  3. Step 3: Cross multiply
    104,647.70x = 156,970.14 × 25,762.58
  4. Step 4: Simplify right side
    104,647.70x = 4,043,955,789.36
  5. Step 5: Solve for x
    x = 4,043,955,789.36/104,647.70
  6. Step 6: Final answer
    x = 38,643.52

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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.