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Finding the Fourth Proportional to 104,242.82, 143,851.22 and 56,495.15

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Solution

The fourth proportional to 104,242.82, 143,851.22 and 56,495.15 is: 77,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,242.82 : 143,851.22 = 56,495.15 : x
  2. Step 2: Convert to fraction form
    104,242.82/143,851.22 = 56,495.15/x
  3. Step 3: Cross multiply
    104,242.82x = 143,851.22 × 56,495.15
  4. Step 4: Simplify right side
    104,242.82x = 8,126,895,532.33
  5. Step 5: Solve for x
    x = 8,126,895,532.33/104,242.82
  6. Step 6: Final answer
    x = 77,961.20

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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.