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Finding the Fourth Proportional to 104,680.73, 144,455.23 and 56,934.11

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Solution

The fourth proportional to 104,680.73, 144,455.23 and 56,934.11 is: 78,566.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,680.73 : 144,455.23 = 56,934.11 : x
  2. Step 2: Convert to fraction form
    104,680.73/144,455.23 = 56,934.11/x
  3. Step 3: Cross multiply
    104,680.73x = 144,455.23 × 56,934.11
  4. Step 4: Simplify right side
    104,680.73x = 8,224,429,954.90
  5. Step 5: Solve for x
    x = 8,224,429,954.90/104,680.73
  6. Step 6: Final answer
    x = 78,566.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.