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Finding the Fourth Proportional to 323,148.34, 484,943.91 and 112,786.28

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Solution

The fourth proportional to 323,148.34, 484,943.91 and 112,786.28 is: 169,256.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,148.34 : 484,943.91 = 112,786.28 : x
  2. Step 2: Convert to fraction form
    323,148.34/484,943.91 = 112,786.28/x
  3. Step 3: Cross multiply
    323,148.34x = 484,943.91 × 112,786.28
  4. Step 4: Simplify right side
    323,148.34x = 54,695,019,617.55
  5. Step 5: Solve for x
    x = 54,695,019,617.55/323,148.34
  6. Step 6: Final answer
    x = 169,256.69

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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.