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Finding the Fourth Proportional to 73,743.40, 110,672.70 and 34,305.40

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Solution

The fourth proportional to 73,743.40, 110,672.70 and 34,305.40 is: 51,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,743.40 : 110,672.70 = 34,305.40 : x
  2. Step 2: Convert to fraction form
    73,743.40/110,672.70 = 34,305.40/x
  3. Step 3: Cross multiply
    73,743.40x = 110,672.70 × 34,305.40
  4. Step 4: Simplify right side
    73,743.40x = 3,796,671,242.58
  5. Step 5: Solve for x
    x = 3,796,671,242.58/73,743.40
  6. Step 6: Final answer
    x = 51,484.90

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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.