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Finding the Fourth Proportional to 109,295.38, 163,948.92 and 34,421.35

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Solution

The fourth proportional to 109,295.38, 163,948.92 and 34,421.35 is: 51,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,295.38 : 163,948.92 = 34,421.35 : x
  2. Step 2: Convert to fraction form
    109,295.38/163,948.92 = 34,421.35/x
  3. Step 3: Cross multiply
    109,295.38x = 163,948.92 × 34,421.35
  4. Step 4: Simplify right side
    109,295.38x = 5,643,343,481.26
  5. Step 5: Solve for x
    x = 5,643,343,481.26/109,295.38
  6. Step 6: Final answer
    x = 51,633.87

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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.