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Finding the Fourth Proportional to 117,246.01, 161,855.29 and 78,550.47

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Solution

The fourth proportional to 117,246.01, 161,855.29 and 78,550.47 is: 108,437.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,246.01 : 161,855.29 = 78,550.47 : x
  2. Step 2: Convert to fraction form
    117,246.01/161,855.29 = 78,550.47/x
  3. Step 3: Cross multiply
    117,246.01x = 161,855.29 × 78,550.47
  4. Step 4: Simplify right side
    117,246.01x = 12,713,808,708.73
  5. Step 5: Solve for x
    x = 12,713,808,708.73/117,246.01
  6. Step 6: Final answer
    x = 108,437.03

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