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Finding the Fourth Proportional to 104,003.70, 156,005.55 and 102,966.90

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Solution

The fourth proportional to 104,003.70, 156,005.55 and 102,966.90 is: 154,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,003.70 : 156,005.55 = 102,966.90 : x
  2. Step 2: Convert to fraction form
    104,003.70/156,005.55 = 102,966.90/x
  3. Step 3: Cross multiply
    104,003.70x = 156,005.55 × 102,966.90
  4. Step 4: Simplify right side
    104,003.70x = 16,063,407,866.30
  5. Step 5: Solve for x
    x = 16,063,407,866.30/104,003.70
  6. Step 6: Final answer
    x = 154,450.35

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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.