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Finding the Fourth Proportional to 322,674.53, 484,145.04 and 142,665.40

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Solution

The fourth proportional to 322,674.53, 484,145.04 and 142,665.40 is: 214,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,674.53 : 484,145.04 = 142,665.40 : x
  2. Step 2: Convert to fraction form
    322,674.53/484,145.04 = 142,665.40/x
  3. Step 3: Cross multiply
    322,674.53x = 484,145.04 × 142,665.40
  4. Step 4: Simplify right side
    322,674.53x = 69,070,743,368.89
  5. Step 5: Solve for x
    x = 69,070,743,368.89/322,674.53
  6. Step 6: Final answer
    x = 214,057.00

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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.