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Finding the Fourth Proportional to 273,663.58, 410,534.55 and 84,139.86

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Solution

The fourth proportional to 273,663.58, 410,534.55 and 84,139.86 is: 126,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,663.58 : 410,534.55 = 84,139.86 : x
  2. Step 2: Convert to fraction form
    273,663.58/410,534.55 = 84,139.86/x
  3. Step 3: Cross multiply
    273,663.58x = 410,534.55 × 84,139.86
  4. Step 4: Simplify right side
    273,663.58x = 34,542,319,562.16
  5. Step 5: Solve for x
    x = 34,542,319,562.16/273,663.58
  6. Step 6: Final answer
    x = 126,221.84

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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.