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Finding the Fourth Proportional to 83,445.54, 125,112.81 and 53,847.21

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Solution

The fourth proportional to 83,445.54, 125,112.81 and 53,847.21 is: 80,735.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,445.54 : 125,112.81 = 53,847.21 : x
  2. Step 2: Convert to fraction form
    83,445.54/125,112.81 = 53,847.21/x
  3. Step 3: Cross multiply
    83,445.54x = 125,112.81 × 53,847.21
  4. Step 4: Simplify right side
    83,445.54x = 6,736,975,753.76
  5. Step 5: Solve for x
    x = 6,736,975,753.76/83,445.54
  6. Step 6: Final answer
    x = 80,735.00

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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.