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Finding the Fourth Proportional to 104,580.45, 156,854.16 and 45,400.23

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Solution

The fourth proportional to 104,580.45, 156,854.16 and 45,400.23 is: 68,093.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,580.45 : 156,854.16 = 45,400.23 : x
  2. Step 2: Convert to fraction form
    104,580.45/156,854.16 = 45,400.23/x
  3. Step 3: Cross multiply
    104,580.45x = 156,854.16 × 45,400.23
  4. Step 4: Simplify right side
    104,580.45x = 7,121,214,940.46
  5. Step 5: Solve for x
    x = 7,121,214,940.46/104,580.45
  6. Step 6: Final answer
    x = 68,093.18

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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.