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Finding the Fourth Proportional to 108,849.65, 163,324.69 and 49,703.45

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Solution

The fourth proportional to 108,849.65, 163,324.69 and 49,703.45 is: 74,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,849.65 : 163,324.69 = 49,703.45 : x
  2. Step 2: Convert to fraction form
    108,849.65/163,324.69 = 49,703.45/x
  3. Step 3: Cross multiply
    108,849.65x = 163,324.69 × 49,703.45
  4. Step 4: Simplify right side
    108,849.65x = 8,117,799,622.30
  5. Step 5: Solve for x
    x = 8,117,799,622.30/108,849.65
  6. Step 6: Final answer
    x = 74,578.10

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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.