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Finding the Fourth Proportional to 104,353.63, 156,462.39 and 68,707.06

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Solution

The fourth proportional to 104,353.63, 156,462.39 and 68,707.06 is: 103,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,353.63 : 156,462.39 = 68,707.06 : x
  2. Step 2: Convert to fraction form
    104,353.63/156,462.39 = 68,707.06/x
  3. Step 3: Cross multiply
    104,353.63x = 156,462.39 × 68,707.06
  4. Step 4: Simplify right side
    104,353.63x = 10,750,070,817.47
  5. Step 5: Solve for x
    x = 10,750,070,817.47/104,353.63
  6. Step 6: Final answer
    x = 103,015.78

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1.5x scale

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.