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Finding the Fourth Proportional to 84,308.76, 126,425.70 and 44,857.56

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Solution

The fourth proportional to 84,308.76, 126,425.70 and 44,857.56 is: 67,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,308.76 : 126,425.70 = 44,857.56 : x
  2. Step 2: Convert to fraction form
    84,308.76/126,425.70 = 44,857.56/x
  3. Step 3: Cross multiply
    84,308.76x = 126,425.70 × 44,857.56
  4. Step 4: Simplify right side
    84,308.76x = 5,671,148,423.29
  5. Step 5: Solve for x
    x = 5,671,148,423.29/84,308.76
  6. Step 6: Final answer
    x = 67,266.42

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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.