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Finding the Fourth Proportional to 89,610.28, 134,415.80 and 36,303.30

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Solution

The fourth proportional to 89,610.28, 134,415.80 and 36,303.30 is: 54,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,610.28 : 134,415.80 = 36,303.30 : x
  2. Step 2: Convert to fraction form
    89,610.28/134,415.80 = 36,303.30/x
  3. Step 3: Cross multiply
    89,610.28x = 134,415.80 × 36,303.30
  4. Step 4: Simplify right side
    89,610.28x = 4,879,736,892.92
  5. Step 5: Solve for x
    x = 4,879,736,892.92/89,610.28
  6. Step 6: Final answer
    x = 54,455.10

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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.