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Finding the Fourth Proportional to 135,181.59, 186,534.32 and 74,744.07

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Solution

The fourth proportional to 135,181.59, 186,534.32 and 74,744.07 is: 103,137.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,181.59 : 186,534.32 = 74,744.07 : x
  2. Step 2: Convert to fraction form
    135,181.59/186,534.32 = 74,744.07/x
  3. Step 3: Cross multiply
    135,181.59x = 186,534.32 × 74,744.07
  4. Step 4: Simplify right side
    135,181.59x = 13,942,333,897.76
  5. Step 5: Solve for x
    x = 13,942,333,897.76/135,181.59
  6. Step 6: Final answer
    x = 103,137.82

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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.