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Finding the Fourth Proportional to 92,773.08, 128,023.74 and 56,964.60

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Solution

The fourth proportional to 92,773.08, 128,023.74 and 56,964.60 is: 78,609.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,773.08 : 128,023.74 = 56,964.60 : x
  2. Step 2: Convert to fraction form
    92,773.08/128,023.74 = 56,964.60/x
  3. Step 3: Cross multiply
    92,773.08x = 128,023.74 × 56,964.60
  4. Step 4: Simplify right side
    92,773.08x = 7,292,821,139.60
  5. Step 5: Solve for x
    x = 7,292,821,139.60/92,773.08
  6. Step 6: Final answer
    x = 78,609.24

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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.