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Finding the Fourth Proportional to 61,890.94, 85,479.06 and 41,830.62

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Solution

The fourth proportional to 61,890.94, 85,479.06 and 41,830.62 is: 57,773.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,890.94 : 85,479.06 = 41,830.62 : x
  2. Step 2: Convert to fraction form
    61,890.94/85,479.06 = 41,830.62/x
  3. Step 3: Cross multiply
    61,890.94x = 85,479.06 × 41,830.62
  4. Step 4: Simplify right side
    61,890.94x = 3,575,642,076.82
  5. Step 5: Solve for x
    x = 3,575,642,076.82/61,890.94
  6. Step 6: Final answer
    x = 57,773.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.