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Finding the Fourth Proportional to 94,699.80, 141,951.30 and 38,515.80

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Solution

The fourth proportional to 94,699.80, 141,951.30 and 38,515.80 is: 57,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,699.80 : 141,951.30 = 38,515.80 : x
  2. Step 2: Convert to fraction form
    94,699.80/141,951.30 = 38,515.80/x
  3. Step 3: Cross multiply
    94,699.80x = 141,951.30 × 38,515.80
  4. Step 4: Simplify right side
    94,699.80x = 5,467,367,880.54
  5. Step 5: Solve for x
    x = 5,467,367,880.54/94,699.80
  6. Step 6: Final answer
    x = 57,733.68

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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.