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Finding the Fourth Proportional to 103,716.40, 143,129.16 and 59,004.40

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Solution

The fourth proportional to 103,716.40, 143,129.16 and 59,004.40 is: 81,426.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,716.40 : 143,129.16 = 59,004.40 : x
  2. Step 2: Convert to fraction form
    103,716.40/143,129.16 = 59,004.40/x
  3. Step 3: Cross multiply
    103,716.40x = 143,129.16 × 59,004.40
  4. Step 4: Simplify right side
    103,716.40x = 8,445,250,208.30
  5. Step 5: Solve for x
    x = 8,445,250,208.30/103,716.40
  6. Step 6: Final answer
    x = 81,426.37

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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.