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Finding the Fourth Proportional to 104,615.02, 156,834.03 and 45,406.18

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Solution

The fourth proportional to 104,615.02, 156,834.03 and 45,406.18 is: 68,070.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,615.02 : 156,834.03 = 45,406.18 : x
  2. Step 2: Convert to fraction form
    104,615.02/156,834.03 = 45,406.18/x
  3. Step 3: Cross multiply
    104,615.02x = 156,834.03 × 45,406.18
  4. Step 4: Simplify right side
    104,615.02x = 7,121,234,196.31
  5. Step 5: Solve for x
    x = 7,121,234,196.31/104,615.02
  6. Step 6: Final answer
    x = 68,070.86

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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.