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Finding the Fourth Proportional to 104,097.89, 143,655.17 and 56,351.09

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Solution

The fourth proportional to 104,097.89, 143,655.17 and 56,351.09 is: 77,764.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,097.89 : 143,655.17 = 56,351.09 : x
  2. Step 2: Convert to fraction form
    104,097.89/143,655.17 = 56,351.09/x
  3. Step 3: Cross multiply
    104,097.89x = 143,655.17 × 56,351.09
  4. Step 4: Simplify right side
    104,097.89x = 8,095,125,131.88
  5. Step 5: Solve for x
    x = 8,095,125,131.88/104,097.89
  6. Step 6: Final answer
    x = 77,764.55

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1.5x scale

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.