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Finding the Fourth Proportional to 84,278.32, 126,326.76 and 44,795.76

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Solution

The fourth proportional to 84,278.32, 126,326.76 and 44,795.76 is: 67,145.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,278.32 : 126,326.76 = 44,795.76 : x
  2. Step 2: Convert to fraction form
    84,278.32/126,326.76 = 44,795.76/x
  3. Step 3: Cross multiply
    84,278.32x = 126,326.76 × 44,795.76
  4. Step 4: Simplify right side
    84,278.32x = 5,658,903,222.54
  5. Step 5: Solve for x
    x = 5,658,903,222.54/84,278.32
  6. Step 6: Final answer
    x = 67,145.42

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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.