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Finding the Fourth Proportional to 217,154.84, 325,775.79 and 75,005.33

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Solution

The fourth proportional to 217,154.84, 325,775.79 and 75,005.33 is: 112,523.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,154.84 : 325,775.79 = 75,005.33 : x
  2. Step 2: Convert to fraction form
    217,154.84/325,775.79 = 75,005.33/x
  3. Step 3: Cross multiply
    217,154.84x = 325,775.79 × 75,005.33
  4. Step 4: Simplify right side
    217,154.84x = 24,434,921,449.40
  5. Step 5: Solve for x
    x = 24,434,921,449.40/217,154.84
  6. Step 6: Final answer
    x = 112,523.03

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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.