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Finding the Fourth Proportional to 51,973.60, 77,814.60 and 50,515.60

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Solution

The fourth proportional to 51,973.60, 77,814.60 and 50,515.60 is: 75,631.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,973.60 : 77,814.60 = 50,515.60 : x
  2. Step 2: Convert to fraction form
    51,973.60/77,814.60 = 50,515.60/x
  3. Step 3: Cross multiply
    51,973.60x = 77,814.60 × 50,515.60
  4. Step 4: Simplify right side
    51,973.60x = 3,930,851,207.76
  5. Step 5: Solve for x
    x = 3,930,851,207.76/51,973.60
  6. Step 6: Final answer
    x = 75,631.69

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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.