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Finding the Fourth Proportional to 66,467.60, 99,701.40 and 41,891.60

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Solution

The fourth proportional to 66,467.60, 99,701.40 and 41,891.60 is: 62,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,467.60 : 99,701.40 = 41,891.60 : x
  2. Step 2: Convert to fraction form
    66,467.60/99,701.40 = 41,891.60/x
  3. Step 3: Cross multiply
    66,467.60x = 99,701.40 × 41,891.60
  4. Step 4: Simplify right side
    66,467.60x = 4,176,651,168.24
  5. Step 5: Solve for x
    x = 4,176,651,168.24/66,467.60
  6. Step 6: Final answer
    x = 62,837.40

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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.