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Finding the Fourth Proportional to 60,824.32, 91,235.84 and 40,042.88

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Solution

The fourth proportional to 60,824.32, 91,235.84 and 40,042.88 is: 60,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,824.32 : 91,235.84 = 40,042.88 : x
  2. Step 2: Convert to fraction form
    60,824.32/91,235.84 = 40,042.88/x
  3. Step 3: Cross multiply
    60,824.32x = 91,235.84 × 40,042.88
  4. Step 4: Simplify right side
    60,824.32x = 3,653,345,792.82
  5. Step 5: Solve for x
    x = 3,653,345,792.82/60,824.32
  6. Step 6: Final answer
    x = 60,063.90

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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.