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Finding the Fourth Proportional to 323,312.28, 484,742.92 and 143,300.04

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Solution

The fourth proportional to 323,312.28, 484,742.92 and 143,300.04 is: 214,850.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,312.28 : 484,742.92 = 143,300.04 : x
  2. Step 2: Convert to fraction form
    323,312.28/484,742.92 = 143,300.04/x
  3. Step 3: Cross multiply
    323,312.28x = 484,742.92 × 143,300.04
  4. Step 4: Simplify right side
    323,312.28x = 69,463,679,825.72
  5. Step 5: Solve for x
    x = 69,463,679,825.72/323,312.28
  6. Step 6: Final answer
    x = 214,850.11

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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.