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Finding the Fourth Proportional to 103,953.40, 155,901.14 and 43,961.15

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Solution

The fourth proportional to 103,953.40, 155,901.14 and 43,961.15 is: 65,929.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,953.40 : 155,901.14 = 43,961.15 : x
  2. Step 2: Convert to fraction form
    103,953.40/155,901.14 = 43,961.15/x
  3. Step 3: Cross multiply
    103,953.40x = 155,901.14 × 43,961.15
  4. Step 4: Simplify right side
    103,953.40x = 6,853,593,735.51
  5. Step 5: Solve for x
    x = 6,853,593,735.51/103,953.40
  6. Step 6: Final answer
    x = 65,929.48

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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.