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Finding the Fourth Proportional to 217,833.40, 326,759.70 and 123,062.20

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Solution

The fourth proportional to 217,833.40, 326,759.70 and 123,062.20 is: 184,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,833.40 : 326,759.70 = 123,062.20 : x
  2. Step 2: Convert to fraction form
    217,833.40/326,759.70 = 123,062.20/x
  3. Step 3: Cross multiply
    217,833.40x = 326,759.70 × 123,062.20
  4. Step 4: Simplify right side
    217,833.40x = 40,211,767,553.34
  5. Step 5: Solve for x
    x = 40,211,767,553.34/217,833.40
  6. Step 6: Final answer
    x = 184,598.72

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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.