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Finding the Fourth Proportional to 92,617.94, 138,779.28 and 59,310.60

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Solution

The fourth proportional to 92,617.94, 138,779.28 and 59,310.60 is: 88,871.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,617.94 : 138,779.28 = 59,310.60 : x
  2. Step 2: Convert to fraction form
    92,617.94/138,779.28 = 59,310.60/x
  3. Step 3: Cross multiply
    92,617.94x = 138,779.28 × 59,310.60
  4. Step 4: Simplify right side
    92,617.94x = 8,231,082,364.37
  5. Step 5: Solve for x
    x = 8,231,082,364.37/92,617.94
  6. Step 6: Final answer
    x = 88,871.37

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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.