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Finding the Fourth Proportional to 104,083.80, 156,125.70 and 74,340.60

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Solution

The fourth proportional to 104,083.80, 156,125.70 and 74,340.60 is: 111,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,083.80 : 156,125.70 = 74,340.60 : x
  2. Step 2: Convert to fraction form
    104,083.80/156,125.70 = 74,340.60/x
  3. Step 3: Cross multiply
    104,083.80x = 156,125.70 × 74,340.60
  4. Step 4: Simplify right side
    104,083.80x = 11,606,478,213.42
  5. Step 5: Solve for x
    x = 11,606,478,213.42/104,083.80
  6. Step 6: Final answer
    x = 111,510.90

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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.