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Finding the Fourth Proportional to 108,389.33, 162,569.61 and 49,211.39

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Solution

The fourth proportional to 108,389.33, 162,569.61 and 49,211.39 is: 73,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,389.33 : 162,569.61 = 49,211.39 : x
  2. Step 2: Convert to fraction form
    108,389.33/162,569.61 = 49,211.39/x
  3. Step 3: Cross multiply
    108,389.33x = 162,569.61 × 49,211.39
  4. Step 4: Simplify right side
    108,389.33x = 8,000,276,479.86
  5. Step 5: Solve for x
    x = 8,000,276,479.86/108,389.33
  6. Step 6: Final answer
    x = 73,810.55

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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.