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Finding the Fourth Proportional to 104,668.34, 156,931.46 and 53,250.63

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Solution

The fourth proportional to 104,668.34, 156,931.46 and 53,250.63 is: 79,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,668.34 : 156,931.46 = 53,250.63 : x
  2. Step 2: Convert to fraction form
    104,668.34/156,931.46 = 53,250.63/x
  3. Step 3: Cross multiply
    104,668.34x = 156,931.46 × 53,250.63
  4. Step 4: Simplify right side
    104,668.34x = 8,356,698,845.57
  5. Step 5: Solve for x
    x = 8,356,698,845.57/104,668.34
  6. Step 6: Final answer
    x = 79,839.80

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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.