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Finding the Fourth Proportional to 217,050.80, 325,624.80 and 83,919.20

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Solution

The fourth proportional to 217,050.80, 325,624.80 and 83,919.20 is: 125,897.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,050.80 : 325,624.80 = 83,919.20 : x
  2. Step 2: Convert to fraction form
    217,050.80/325,624.80 = 83,919.20/x
  3. Step 3: Cross multiply
    217,050.80x = 325,624.80 × 83,919.20
  4. Step 4: Simplify right side
    217,050.80x = 27,326,172,716.16
  5. Step 5: Solve for x
    x = 27,326,172,716.16/217,050.80
  6. Step 6: Final answer
    x = 125,897.59

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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.