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Finding the Fourth Proportional to 223,460.64, 335,085.57 and 81,205.86

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Solution

The fourth proportional to 223,460.64, 335,085.57 and 81,205.86 is: 121,770.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,460.64 : 335,085.57 = 81,205.86 : x
  2. Step 2: Convert to fraction form
    223,460.64/335,085.57 = 81,205.86/x
  3. Step 3: Cross multiply
    223,460.64x = 335,085.57 × 81,205.86
  4. Step 4: Simplify right side
    223,460.64x = 27,210,911,885.44
  5. Step 5: Solve for x
    x = 27,210,911,885.44/223,460.64
  6. Step 6: Final answer
    x = 121,770.49

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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.