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Finding the Fourth Proportional to 123,958.62, 185,954.76 and 45,095.40

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Solution

The fourth proportional to 123,958.62, 185,954.76 and 45,095.40 is: 67,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,958.62 : 185,954.76 = 45,095.40 : x
  2. Step 2: Convert to fraction form
    123,958.62/185,954.76 = 45,095.40/x
  3. Step 3: Cross multiply
    123,958.62x = 185,954.76 × 45,095.40
  4. Step 4: Simplify right side
    123,958.62x = 8,385,704,284.10
  5. Step 5: Solve for x
    x = 8,385,704,284.10/123,958.62
  6. Step 6: Final answer
    x = 67,649.22

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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.