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Finding the Fourth Proportional to 104,003.60, 156,005.40 and 102,448.40

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Solution

The fourth proportional to 104,003.60, 156,005.40 and 102,448.40 is: 153,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,003.60 : 156,005.40 = 102,448.40 : x
  2. Step 2: Convert to fraction form
    104,003.60/156,005.40 = 102,448.40/x
  3. Step 3: Cross multiply
    104,003.60x = 156,005.40 × 102,448.40
  4. Step 4: Simplify right side
    104,003.60x = 15,982,503,621.36
  5. Step 5: Solve for x
    x = 15,982,503,621.36/104,003.60
  6. Step 6: Final answer
    x = 153,672.60

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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.