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Finding the Fourth Proportional to 66,358.52, 99,303.92 and 41,410.32

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Solution

The fourth proportional to 66,358.52, 99,303.92 and 41,410.32 is: 61,969.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,358.52 : 99,303.92 = 41,410.32 : x
  2. Step 2: Convert to fraction form
    66,358.52/99,303.92 = 41,410.32/x
  3. Step 3: Cross multiply
    66,358.52x = 99,303.92 × 41,410.32
  4. Step 4: Simplify right side
    66,358.52x = 4,112,207,104.45
  5. Step 5: Solve for x
    x = 4,112,207,104.45/66,358.52
  6. Step 6: Final answer
    x = 61,969.54

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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.