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Finding the Fourth Proportional to 104,641.10, 156,958.18 and 45,476.84

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Solution

The fourth proportional to 104,641.10, 156,958.18 and 45,476.84 is: 68,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,641.10 : 156,958.18 = 45,476.84 : x
  2. Step 2: Convert to fraction form
    104,641.10/156,958.18 = 45,476.84/x
  3. Step 3: Cross multiply
    104,641.10x = 156,958.18 × 45,476.84
  4. Step 4: Simplify right side
    104,641.10x = 7,137,962,038.55
  5. Step 5: Solve for x
    x = 7,137,962,038.55/104,641.10
  6. Step 6: Final answer
    x = 68,213.75

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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.