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Finding the Fourth Proportional to 217,250.65, 299,823.56 and 120,464.11

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Solution

The fourth proportional to 217,250.65, 299,823.56 and 120,464.11 is: 166,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,250.65 : 299,823.56 = 120,464.11 : x
  2. Step 2: Convert to fraction form
    217,250.65/299,823.56 = 120,464.11/x
  3. Step 3: Cross multiply
    217,250.65x = 299,823.56 × 120,464.11
  4. Step 4: Simplify right side
    217,250.65x = 36,117,978,312.43
  5. Step 5: Solve for x
    x = 36,117,978,312.43/217,250.65
  6. Step 6: Final answer
    x = 166,250.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.