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Finding the Fourth Proportional to 215,358.30, 323,106.30 and 65,627.10

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Solution

The fourth proportional to 215,358.30, 323,106.30 and 65,627.10 is: 98,461.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,358.30 : 323,106.30 = 65,627.10 : x
  2. Step 2: Convert to fraction form
    215,358.30/323,106.30 = 65,627.10/x
  3. Step 3: Cross multiply
    215,358.30x = 323,106.30 × 65,627.10
  4. Step 4: Simplify right side
    215,358.30x = 21,204,529,460.73
  5. Step 5: Solve for x
    x = 21,204,529,460.73/215,358.30
  6. Step 6: Final answer
    x = 98,461.63

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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.