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Finding the Fourth Proportional to 89,765.56, 134,710.52 and 35,724.68

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Solution

The fourth proportional to 89,765.56, 134,710.52 and 35,724.68 is: 53,611.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,765.56 : 134,710.52 = 35,724.68 : x
  2. Step 2: Convert to fraction form
    89,765.56/134,710.52 = 35,724.68/x
  3. Step 3: Cross multiply
    89,765.56x = 134,710.52 × 35,724.68
  4. Step 4: Simplify right side
    89,765.56x = 4,812,490,219.63
  5. Step 5: Solve for x
    x = 4,812,490,219.63/89,765.56
  6. Step 6: Final answer
    x = 53,611.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.