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Finding the Fourth Proportional to 323,222.16, 484,607.92 and 143,209.72

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Solution

The fourth proportional to 323,222.16, 484,607.92 and 143,209.72 is: 214,714.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,222.16 : 484,607.92 = 143,209.72 : x
  2. Step 2: Convert to fraction form
    323,222.16/484,607.92 = 143,209.72/x
  3. Step 3: Cross multiply
    323,222.16x = 484,607.92 × 143,209.72
  4. Step 4: Simplify right side
    323,222.16x = 69,400,564,532.98
  5. Step 5: Solve for x
    x = 69,400,564,532.98/323,222.16
  6. Step 6: Final answer
    x = 214,714.75

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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.