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Finding the Fourth Proportional to 104,442.60, 156,663.90 and 30,570.60

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Solution

The fourth proportional to 104,442.60, 156,663.90 and 30,570.60 is: 45,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,442.60 : 156,663.90 = 30,570.60 : x
  2. Step 2: Convert to fraction form
    104,442.60/156,663.90 = 30,570.60/x
  3. Step 3: Cross multiply
    104,442.60x = 156,663.90 × 30,570.60
  4. Step 4: Simplify right side
    104,442.60x = 4,789,309,421.34
  5. Step 5: Solve for x
    x = 4,789,309,421.34/104,442.60
  6. Step 6: Final answer
    x = 45,855.90

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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.