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Finding the Fourth Proportional to 129,954.56, 194,891.52 and 46,837.76

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Solution

The fourth proportional to 129,954.56, 194,891.52 and 46,837.76 is: 70,242.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,954.56 : 194,891.52 = 46,837.76 : x
  2. Step 2: Convert to fraction form
    129,954.56/194,891.52 = 46,837.76/x
  3. Step 3: Cross multiply
    129,954.56x = 194,891.52 × 46,837.76
  4. Step 4: Simplify right side
    129,954.56x = 9,128,282,239.80
  5. Step 5: Solve for x
    x = 9,128,282,239.80/129,954.56
  6. Step 6: Final answer
    x = 70,242.11

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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.