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Finding the Fourth Proportional to 215,701.97, 323,551.58 and 65,941.67

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Solution

The fourth proportional to 215,701.97, 323,551.58 and 65,941.67 is: 98,912.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,701.97 : 323,551.58 = 65,941.67 : x
  2. Step 2: Convert to fraction form
    215,701.97/323,551.58 = 65,941.67/x
  3. Step 3: Cross multiply
    215,701.97x = 323,551.58 × 65,941.67
  4. Step 4: Simplify right side
    215,701.97x = 21,335,531,995.51
  5. Step 5: Solve for x
    x = 21,335,531,995.51/215,701.97
  6. Step 6: Final answer
    x = 98,912.09

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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.