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Finding the Fourth Proportional to 344,871.34, 517,328.87 and 108,223.36

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Solution

The fourth proportional to 344,871.34, 517,328.87 and 108,223.36 is: 162,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,871.34 : 517,328.87 = 108,223.36 : x
  2. Step 2: Convert to fraction form
    344,871.34/517,328.87 = 108,223.36/x
  3. Step 3: Cross multiply
    344,871.34x = 517,328.87 × 108,223.36
  4. Step 4: Simplify right side
    344,871.34x = 55,987,068,536.40
  5. Step 5: Solve for x
    x = 55,987,068,536.40/344,871.34
  6. Step 6: Final answer
    x = 162,341.90

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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.