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Finding the Fourth Proportional to 323,171.16, 484,978.14 and 112,809.12

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Solution

The fourth proportional to 323,171.16, 484,978.14 and 112,809.12 is: 169,290.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,171.16 : 484,978.14 = 112,809.12 : x
  2. Step 2: Convert to fraction form
    323,171.16/484,978.14 = 112,809.12/x
  3. Step 3: Cross multiply
    323,171.16x = 484,978.14 × 112,809.12
  4. Step 4: Simplify right side
    323,171.16x = 54,709,957,192.64
  5. Step 5: Solve for x
    x = 54,709,957,192.64/323,171.16
  6. Step 6: Final answer
    x = 169,290.96

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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.