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Finding the Fourth Proportional to 217,403.80, 326,070.78 and 59,595.64

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Solution

The fourth proportional to 217,403.80, 326,070.78 and 59,595.64 is: 89,383.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,403.80 : 326,070.78 = 59,595.64 : x
  2. Step 2: Convert to fraction form
    217,403.80/326,070.78 = 59,595.64/x
  3. Step 3: Cross multiply
    217,403.80x = 326,070.78 × 59,595.64
  4. Step 4: Simplify right side
    217,403.80x = 19,432,396,819.40
  5. Step 5: Solve for x
    x = 19,432,396,819.40/217,403.80
  6. Step 6: Final answer
    x = 89,383.89

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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.