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Finding the Fourth Proportional to 234,685.92, 352,109.52 and 68,498.40

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Solution

The fourth proportional to 234,685.92, 352,109.52 and 68,498.40 is: 102,771.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,685.92 : 352,109.52 = 68,498.40 : x
  2. Step 2: Convert to fraction form
    234,685.92/352,109.52 = 68,498.40/x
  3. Step 3: Cross multiply
    234,685.92x = 352,109.52 × 68,498.40
  4. Step 4: Simplify right side
    234,685.92x = 24,118,938,744.77
  5. Step 5: Solve for x
    x = 24,118,938,744.77/234,685.92
  6. Step 6: Final answer
    x = 102,771.14

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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.