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Finding the Fourth Proportional to 66,393, 99,355.68 and 41,444.82

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Solution

The fourth proportional to 66,393, 99,355.68 and 41,444.82 is: 62,021.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,393 : 99,355.68 = 41,444.82 : x
  2. Step 2: Convert to fraction form
    66,393/99,355.68 = 41,444.82/x
  3. Step 3: Cross multiply
    66,393x = 99,355.68 × 41,444.82
  4. Step 4: Simplify right side
    66,393x = 4,117,778,273.58
  5. Step 5: Solve for x
    x = 4,117,778,273.58/66,393
  6. Step 6: Final answer
    x = 62,021.27

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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.