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Finding the Fourth Proportional to 215,765.01, 323,595.54 and 66,006.59

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Solution

The fourth proportional to 215,765.01, 323,595.54 and 66,006.59 is: 98,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,765.01 : 323,595.54 = 66,006.59 : x
  2. Step 2: Convert to fraction form
    215,765.01/323,595.54 = 66,006.59/x
  3. Step 3: Cross multiply
    215,765.01x = 323,595.54 × 66,006.59
  4. Step 4: Simplify right side
    215,765.01x = 21,359,436,516.63
  5. Step 5: Solve for x
    x = 21,359,436,516.63/215,765.01
  6. Step 6: Final answer
    x = 98,993.98

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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.