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Finding the Fourth Proportional to 217,086.40, 325,629.60 and 59,330.80

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Solution

The fourth proportional to 217,086.40, 325,629.60 and 59,330.80 is: 88,996.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,086.40 : 325,629.60 = 59,330.80 : x
  2. Step 2: Convert to fraction form
    217,086.40/325,629.60 = 59,330.80/x
  3. Step 3: Cross multiply
    217,086.40x = 325,629.60 × 59,330.80
  4. Step 4: Simplify right side
    217,086.40x = 19,319,864,671.68
  5. Step 5: Solve for x
    x = 19,319,864,671.68/217,086.40
  6. Step 6: Final answer
    x = 88,996.20

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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.