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Finding the Fourth Proportional to 95,915.50, 143,931.57 and 40,511.50

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Solution

The fourth proportional to 95,915.50, 143,931.57 and 40,511.50 is: 60,791.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,915.50 : 143,931.57 = 40,511.50 : x
  2. Step 2: Convert to fraction form
    95,915.50/143,931.57 = 40,511.50/x
  3. Step 3: Cross multiply
    95,915.50x = 143,931.57 × 40,511.50
  4. Step 4: Simplify right side
    95,915.50x = 5,830,883,798.06
  5. Step 5: Solve for x
    x = 5,830,883,798.06/95,915.50
  6. Step 6: Final answer
    x = 60,791.88

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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.