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Finding the Fourth Proportional to 61,774.92, 92,485.80 and 57,851.37

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Solution

The fourth proportional to 61,774.92, 92,485.80 and 57,851.37 is: 86,611.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,774.92 : 92,485.80 = 57,851.37 : x
  2. Step 2: Convert to fraction form
    61,774.92/92,485.80 = 57,851.37/x
  3. Step 3: Cross multiply
    61,774.92x = 92,485.80 × 57,851.37
  4. Step 4: Simplify right side
    61,774.92x = 5,350,430,235.55
  5. Step 5: Solve for x
    x = 5,350,430,235.55/61,774.92
  6. Step 6: Final answer
    x = 86,611.69

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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.