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Finding the Fourth Proportional to 108,922.70, 150,350.10 and 68,703.50

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Solution

The fourth proportional to 108,922.70, 150,350.10 and 68,703.50 is: 94,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,922.70 : 150,350.10 = 68,703.50 : x
  2. Step 2: Convert to fraction form
    108,922.70/150,350.10 = 68,703.50/x
  3. Step 3: Cross multiply
    108,922.70x = 150,350.10 × 68,703.50
  4. Step 4: Simplify right side
    108,922.70x = 10,329,578,095.35
  5. Step 5: Solve for x
    x = 10,329,578,095.35/108,922.70
  6. Step 6: Final answer
    x = 94,834.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.