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Finding the Fourth Proportional to 84,614.84, 126,783.80 and 51,233.80

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Solution

The fourth proportional to 84,614.84, 126,783.80 and 51,233.80 is: 76,766.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,614.84 : 126,783.80 = 51,233.80 : x
  2. Step 2: Convert to fraction form
    84,614.84/126,783.80 = 51,233.80/x
  3. Step 3: Cross multiply
    84,614.84x = 126,783.80 × 51,233.80
  4. Step 4: Simplify right side
    84,614.84x = 6,495,615,852.44
  5. Step 5: Solve for x
    x = 6,495,615,852.44/84,614.84
  6. Step 6: Final answer
    x = 76,766.86

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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.