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Finding the Fourth Proportional to 215,702.97, 323,553.07 and 65,942.67

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Solution

The fourth proportional to 215,702.97, 323,553.07 and 65,942.67 is: 98,913.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,702.97 : 323,553.07 = 65,942.67 : x
  2. Step 2: Convert to fraction form
    215,702.97/323,553.07 = 65,942.67/x
  3. Step 3: Cross multiply
    215,702.97x = 323,553.07 × 65,942.67
  4. Step 4: Simplify right side
    215,702.97x = 21,335,953,322.50
  5. Step 5: Solve for x
    x = 21,335,953,322.50/215,702.97
  6. Step 6: Final answer
    x = 98,913.58

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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.