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Finding the Fourth Proportional to 104,420.92, 156,631.40 and 25,534.20

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Solution

The fourth proportional to 104,420.92, 156,631.40 and 25,534.20 is: 38,301.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,420.92 : 156,631.40 = 25,534.20 : x
  2. Step 2: Convert to fraction form
    104,420.92/156,631.40 = 25,534.20/x
  3. Step 3: Cross multiply
    104,420.92x = 156,631.40 × 25,534.20
  4. Step 4: Simplify right side
    104,420.92x = 3,999,457,493.88
  5. Step 5: Solve for x
    x = 3,999,457,493.88/104,420.92
  6. Step 6: Final answer
    x = 38,301.30

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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.