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Finding the Fourth Proportional to 447,082.40, 670,393.20 and 166,455.20

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Solution

The fourth proportional to 447,082.40, 670,393.20 and 166,455.20 is: 249,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,082.40 : 670,393.20 = 166,455.20 : x
  2. Step 2: Convert to fraction form
    447,082.40/670,393.20 = 166,455.20/x
  3. Step 3: Cross multiply
    447,082.40x = 670,393.20 × 166,455.20
  4. Step 4: Simplify right side
    447,082.40x = 111,590,434,184.64
  5. Step 5: Solve for x
    x = 111,590,434,184.64/447,082.40
  6. Step 6: Final answer
    x = 249,597.02

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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.