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Finding the Fourth Proportional to 61,861.86, 93,256.35 and 57,742.23

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Solution

The fourth proportional to 61,861.86, 93,256.35 and 57,742.23 is: 87,046.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,861.86 : 93,256.35 = 57,742.23 : x
  2. Step 2: Convert to fraction form
    61,861.86/93,256.35 = 57,742.23/x
  3. Step 3: Cross multiply
    61,861.86x = 93,256.35 × 57,742.23
  4. Step 4: Simplify right side
    61,861.86x = 5,384,829,610.66
  5. Step 5: Solve for x
    x = 5,384,829,610.66/61,861.86
  6. Step 6: Final answer
    x = 87,046.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.