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Finding the Fourth Proportional to 104,607.40, 156,911.10 and 64,658.20

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Solution

The fourth proportional to 104,607.40, 156,911.10 and 64,658.20 is: 96,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,607.40 : 156,911.10 = 64,658.20 : x
  2. Step 2: Convert to fraction form
    104,607.40/156,911.10 = 64,658.20/x
  3. Step 3: Cross multiply
    104,607.40x = 156,911.10 × 64,658.20
  4. Step 4: Simplify right side
    104,607.40x = 10,145,589,286.02
  5. Step 5: Solve for x
    x = 10,145,589,286.02/104,607.40
  6. Step 6: Final answer
    x = 96,987.30

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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.