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Finding the Fourth Proportional to 129,880.90, 194,820.00 and 41,134.40

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Solution

The fourth proportional to 129,880.90, 194,820.00 and 41,134.40 is: 61,701.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,880.90 : 194,820.00 = 41,134.40 : x
  2. Step 2: Convert to fraction form
    129,880.90/194,820.00 = 41,134.40/x
  3. Step 3: Cross multiply
    129,880.90x = 194,820.00 × 41,134.40
  4. Step 4: Simplify right side
    129,880.90x = 8,013,802,936.74
  5. Step 5: Solve for x
    x = 8,013,802,936.74/129,880.90
  6. Step 6: Final answer
    x = 61,701.17

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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.