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Finding the Fourth Proportional to 223,653.15, 335,364.81 and 65,861.10

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Solution

The fourth proportional to 223,653.15, 335,364.81 and 65,861.10 is: 98,757.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,653.15 : 335,364.81 = 65,861.10 : x
  2. Step 2: Convert to fraction form
    223,653.15/335,364.81 = 65,861.10/x
  3. Step 3: Cross multiply
    223,653.15x = 335,364.81 × 65,861.10
  4. Step 4: Simplify right side
    223,653.15x = 22,087,495,040.91
  5. Step 5: Solve for x
    x = 22,087,495,040.91/223,653.15
  6. Step 6: Final answer
    x = 98,757.81

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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.